Monday, January 20, 2014

Lincoln, NE, January Max Temperature 1887-2014

January 19, 2014 saw a new record high of 66F in Lincoln, NE breaking the old record of 65F set over 100 years ago in 1895.

This raises an interesting question.... how common is it to have temperatures this warm in January?  And is there any trend in the frequency of these warm January temperatures?

Lincoln daily temperature data extend from January 1887 to January 2014.  The following graph shows the warmest temperature during each January during this 128 year time period.

The 66F observed on January 19, 2014 is not the warmest recorded January temperature in Lincoln, NE.  The warmest January temperature observed in Lincoln during this time period is 73F set on January 10,1990.

There were 12 months of January which hit 66F or higher since 1981 (34 years) however,
only 9 months of January hit 66F or higher during the period 1887-1980 (94 years).

1981-2014 Percent of Januaries that saw at least 66F or higher = 12/34 = 35.3 %
1887-1980 Percent of Januaries that saw at least 66F or higher = 9/94 = 9.6%

Clearly the probability of having a January temperature of 66F or higher is greater during the more recent time period.

Breaking this down by 20 year time periods for the highest temperature observed in each January:
20 Years       Frequency  66F or Higher

1995-2014     6
1975-1994     6
1955-1974     1
1935-1954     3
1915-1934     4
1905-1924     0





Thursday, January 16, 2014

Year 2013 U.S. Statewide Temperature and Precipitation Rankings

Year 2013 Climate Summary:  Statewide Temperature and Precipitation rankings

Nebraska was cooler than normal in 2013 with a ranking of 37th coldest (out of 119 years) on record.  However, when the entire map is analyzed, the 48 states region averaged above normal with a ranking of 37th warmest on record.

Nebraska averaged near normal precipitation in 2013 with a ranking of 76th wettest out of 119 years (or conversely, 44th driest).  It was a year of extreme contrasts with California experiencing its driest year on record and North Dakota and Michigan experiencing their wettest years on record.. All of the southeastern states experienced their top ten wettest years on record.

The NOAA/NCDC summary of year 2013 for the states can be found below the two maps.

LINK TO THE December 2013 Statewide Temperature and Precipitation Rankings
F

From NOAA/NCDC >>>>>

In 2013, the contiguous United States (CONUS) average temperature of 52.4°F was 0.3°F above the 20th century average, and tied with 1980 as the 37th warmest year in the 119-year period of record. The 2013 annual temperature marked the coolest year for the nation since 2009. The 2013 CONUS average temperature was 2.9°F cooler than the 2012 average temperature, which was the warmest year on record for the nation. Since 1895, when national temperature records began, the CONUS has observed a long-term temperature increase of about 0.13°F per decade. Precipitation averaged across the CONUS in 2013 was 31.17 inches, 2.03 inches above the 20th century average. This marked the 21st wettest year on record for the nation and the wettest since 2009. Compared to 2012, which was the 18th driest year on record, the CONUS was 4.50 inches wetter in 2013. Over the 119-year period of record, precipitation across the CONUS increased at an average rate of 0.17 inch per decade.
On a statewide and seasonal level, 2013 was a year of precipitation extremes, with temperature extremes being more muted than the previous year. Above-average temperatures during 2013 were observed in parts of the West, Northeast, and in Florida. No state had annual temperatures that ranked among the ten warmest. California tied its 12th warmest year with a statewide average temperature of 60.3°F, 1.4°F above average. Below-average annual temperatures were observed from the Northern Plains, through the Central Plains and Midwest, and into the Southeast. No state had annual temperatures that ranked among the ten coolest. Despite no state having a record warm or cool year, numerous locations across California and Florida had their warmest year on record, while numerous locations across the Plains and Mid-South had their coolest year on record. A map of those stations is available here. Based on NOAA's Residential Energy Demand Temperature Index (REDTI), the contiguous U.S. temperature-related energy demand during 2013 was 7 percent above average and ranked as the 49th lowest in the 1895-2013 period of record. On a local level during 2013, approximately 26,100 daily warm temperature records were tied or broken (10,100 warm daily maximum records and 16,000 warm daily minimum records); while approximately 28,800 daily cool temperature records were tied or broken (16,900 cool daily maximum records and 11,900 cool daily minimum records).
Overall, much of the CONUS was wetter than average for the year, particularly east of the Rockies. The largest precipitation departures from average were observed in the Northern Plains, the Upper Midwest, and the Southeast. In total 10 states had annual precipitation totals that ranked among the ten wettest years on record. Michigan had its wettest year on record with 40.12 inches of precipitation, 8.9 inches above average. This bested the previous record wet year of 1985 by 0.64 inch. North Dakota also had its wettest year on record with 24.54 inches of precipitation, 7.18 inches above average. This bested the previous record wet year of 2010 by 0.29 inch. In contrast, portions of the West were dry. California had its driest calendar year on record with 7.38 inches of precipitation, 15.13 inches below average. This was 2.42 inches below the previous record dry year of 1898. By the end of 2013, 27.6 percent of California was in Severe Drought. To the north, Oregon had its fourth driest year, while Idaho had its 12th driest. Numerous locations across the Southeast, Midwest, Northern Plains, and Rockies experienced their wettest year on record, while locations in California, Idaho, and Washington had their driest. A map of those stations is available here. In term of drought, according to the U.S. Drought Monitor, conditions improved across much of the southeastern and central U.S. during 2013, but deteriorated in the Far West and Northeast. At the end of 2013, about 31.0 percent of the contiguous U.S. was experiencing drought, down from 61.1 percent at the beginning of the year.

Wednesday, January 15, 2014

December 2013 Statewide Temperature and Precipitation Rankings

December 2013 U.S. Climate Summary.

Nebraska averaged below normal temperatures and below normal precipitation during December 2013.

NOTE:  There are two maps following the NOAA/NCDC summary. 

From NOAA/NCDC
  • U.S. Climate Highlights — December
  • 2013The average contiguous U.S. temperature for December was 30.9°F, 2.0°F below the 20th century average. This was the 21st coldest December on record for the nation and the coldest since 2009.
  • Below-average temperatures were widespread across the West, the Plains States, and the Upper Midwest. Minnesota had its eighth coldest December on record with an average temperature of 5.8°F, 8.8°F below average. North Dakota tied its 9th coldest December with an average temperature of 4.5°F, 8.4°F below average.
  • Above-average temperatures were observed across parts of the Southeast and Mid-Atlantic. Florida had its sixth warmest December with a statewide average temperature of 64.6°F, 5.0°F above average.
  • The national precipitation total during December was 2.17 inches, 0.06 inch below the 20th century average, ranking near the median value in the 119-year period of record.
  • Above-average precipitation was observed in the Northern Plains and Rockies, the Southeast, the Mid-Atlantic and the Midwest. Alabama, Georgia, North Dakota, Ohio, Virginia, and West Virginia, each had December precipitation totals that ranked among the ten wettest on record.
  • Below-average precipitation was observed in the Central Plains and the West Coast. California had its second driest December on record, punctuating the driest calendar year on record for the state. Oregon had its third driest December, while Washington had its sixth driest.
  • According to the December 31st U.S. Drought Monitor report, the national drought footprint changed little during the month with drought conditions impacting approximately 31.0 percent of the contiguous United States. Abnormally dry conditions expanded in the Northwest, and improved across the Southeast.
  • Several snow storms impacted the Intermountain West, Northern Plains, Midwest and Northeast during December. According to the Rutgers Global Snow Lab, the December snow cover extent for the contiguous U.S. was 1.5 million square miles, which was 317,000 square miles above the 1981-2010 average. This ranked as the eighth largest December snow cover extent on record, and the largest since December 2009.
  • Based on NOAA's Residential Energy Demand Temperature Index (REDTI), the contiguous U.S. temperature-related energy demand during December was 15 percent above average and the 41st highest in the 1895-2013 period of record.
LINK to the Year 2013 Statewide Temperature and Precipitation Rankings


Friday, January 3, 2014

Year 2013 Temperature and Precipitation Anomalies

The following maps cover the time period of January 1, 2013 through December 31, 2013.  

There are two sets of maps, 
SET #1 for precipitation in the conterminous U.S. and the High Plains Region
SET #2 temperature for the conterminous U.S. and the High Plains Region.

SET #1:
U.S. and High Plains Total Precipitation in inches
U.S. and High Plains Precipitation Departure from Normal in inches
U.S. and High Plains Percent of Normal precipitation

SET #2: 
U.S. and High Plains Average temperature (F)
U.S. and High Plains Temperature departure from normal (F)


U.S. Total Precipitation in inches


High Plains Total Precipitation in inches



U.S. Departure from Normal precipitation in inches



 High Plains Departure from Normal precipitation in inches


U.S. Percent of Normal precipitation

 U.S. Average Temperature

  High Plains Average Temperature
  U.S. Temperature Departure from Normal

 High Plains Temperature Departure from Normal

Thursday, January 2, 2014

Lincoln, NE, Year 2013 Climate Statistics

Lincoln, Nebraska Climate Statistics, Year 2013


The Red Line is the normal high and the blue line is the normal low.
The top of each vertical bar is the high for the day and the bottom of each vertical bar is the low for the day.

All data in this table are from the National Weather Service and HPRCC data archives.


Period of Record 
127 years (1887-2013)
 

Year 2013 Avg. Temperature
50.2 F (-0.9)
 Normal Annual Avg. Temperature
51.1 F
Warmest (All Years) Ann. Avg. and year
55.7 F  in 1934 and 1931
Coldest (All Years) Ann. Avg. and year
47.8 F in 1978
 

Year 2013 Warmest Temperature
100 F, May 14; Aug. 30; Sept. 9
Year 2013 Warmest night time low
76 F, June 21; July 13
Year 2013 Warmest Daily Average (high+low/2)
87 F, Sept. 9; June 21; July 9
Warmest Temperature ALL years
115 F, July 25, 1936
 

Year 2013 Coldest Temperature
-10 F,  December 9
Year 2013 Coldest Day time high
+12 F,  December 7
Year 2013 Coldest Daily Average (high+low/2)
+ 3F, December 9
Coldest Temperature (All years)
-33 F, Jan. 12, 1974
 

Year 2013 Number of days <  0 F Year 2012
7 days
Most & Year (All Years)
35 in 1978 and 1979
Least & Year (All Years)
0 in 1931 & 1987
Normal
11 days


Year 2013 Number of days >  90 F
41
Most & Year (All Years)
82 days in 1936
Least & Year (All Years)
7 days in 1889
Normal
42 days
 

Year 2012 Number of days >  100 F
3 days
Most & Year (All Years)
41 days in 1936
Normal
5 days
 

Day most below normal year 2013
December 7 and 9
 25 degrees below normal
Day most above normal year 2013
September 27
 19  degrees above normal
      
Year 2013 Number of Days exactly normal
15 days
Year 2013 Number of Days above normal
157 days
Year 2013 Number of Days below normal
193 days


Year 2013 Largest temperature change 
within the same calendar day
47 degrees: Oct. 27; Dec. 27
 (25F to 72F) & ( 15F to 62F)


Year 2013 Smallest temperature change
within the same calendar day
4 degrees: February 21
 (20F to 24F)


Year 2013 Largest temperature rise from
one day to the next
54 degrees:
31F to 85F (May 12-13)

46F to 100F (May 13-14)


Year 2013 Largest temperature rise
within a week
69 degrees:
31F to 100 (May 12-14)


Year 2013 Largest temperature drop from
one day to the next
  57 degrees:
60 F to 3 F (December 28-29)


Year 2013 Largest temperature drop
within a week
 75 degrees:
65F to -10F (December 2-9)


Year 2013 Precipitation Total
26.71  inches
(2.22  inches BELOW normal)
Normal Precipitation Total
28.93 inches
Year 2013 Wettest Day
3.32 inches, May 27
Most Annual Precipitation (All Years)
45.15 inches 1965
Least Annual Precipitation (All Years)
14.09 inches 1936
 

Year 2013 Snowfall Total
28.3 inches
Year 2013 Snowiest Day
5.5 inches, March 10
Year 2013 Deepest Snow Depth
6.0 inches, March 11
Most Annual Snowfall (All Years)
55.2 inches 1983
Least Annual Snowfall (All Years)
7.0 inches 1946


Monthly Windiest Day (peak wind speed)

January 2013 Windiest Day (peak wind speed)
41 mph: Jan 11
February 2013 Windiest Day (peak wind speed)
49 mph: Feb 10
March 2013 Windiest Day (peak wind speed)
47 mph: March 30
April 2013 Windiest Day (peak wind speed)
43 mph: April 18
May 2013 Windiest Day (peak wind speed)
55 mph: May 29
June 2013 Windiest Day (peak wind speed)
52 mph: June 8
July 2013 Windiest Day (peak wind speed)
44 mph: July 23
August 2013 Windiest Day (peak wind speed)
46 mph: Aug 21
September 2013 Windiest Day (peak wind speed)
43 mph: Sept 26
October 2013 Windiest Day (peak wind speed)
39 mph: Oct 14
November 2013 Windiest Day (peak wind speed)
48 mph: Nov 3
December 2013 Windiest Day (peak wind speed)
45 mph: Dec 29
Year 2013 Windiest Day (peak wind speed)
45 mph: May 29

Lincoln, NE, Year 2013
Number of days above, below and exactly normal temperature

Month B A N
JAN 17 14 0
FEB 12 16 0
MAR 22 9 0
APR 19 9 2
MAY 14 15 2
JUNE 14 13 3
JULY 17 13 1
AUG 16 14 1
SEPT 6 21 3
OCT 21 8 2
NOV 16 14 0
DEC 19 11 1
Total  193 157 15
 
 
RELATED LINKS:
Lincoln Weather and Climate
Lincoln's Snowfall climatology
December 2013 Lincoln, NE, daily climate data
December 2013 Photo Gallery
Lincoln, NE, December 2013 Climate Summary Lincoln's 2013 Climate Summary created by the NWS


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December 2013 Lincoln, NE, Climate Summary

Headline:  December 2013 was cooler than normal and drier than normal for Lincoln, NE.

The highest temperature observed in Lincoln, NE, in December  2013 was 65 F on December 2, 2013.  Unusually warm temperatures returned toward the end of the month with highs of 60F and 62F on December 27-28, 2013.  The lowest temperature for the month of December 2013 in Lincoln, NE,  was -10F on December 9, 2013.


The December 2013 precipitation total in Lincoln, NE was only 0.22 inches or 0.73 inches below normal.  The total January 1 through December 31, 2013 precipitation in Lincoln was 26.71 inches or 2.22 inches below the normal annual total of 28.93 inches. See the table below the graph for the Year 2013 precipitation totals.
Lincoln, NE, had five days with measurable snowfall in December 2013 with the largest amount 5.2 inches on December 8, 2013.

The following graph shows the Lincoln, NE, December 2013 daily high and low temperatures compared to normal daily highs and lows.   

NOTE:  The December 2013 statistics are located below the graph.

The Red Line is the normal high and the blue line is the normal low.
The top of each vertical bar is the high for the day and the bottom of each vertical bar is the low for the day. All data in this graph are from the National Weather Service and HPRCC data archives.

 Here are the Lincoln, NE, summary statistics for December 2013.

TEMPERATURE:
December 2013 Temperature Statistics:
Average High Temperature 34.6 F (2.6 degrees BELOW Normal)
Average Low Temperature 9.8F (6.6 degrees BELOW Normal)
Mean Temperature 22.2 F (4.6 degrees
BELOW  Normal)
Note: Mean temperature = the average of all the highs and lows
Number of days ABOVE Normal = 11
Number of Days BELOW Normal = 19
Number of Days exactly Normal = 1
Highest temperature 65F on December 2

Lowest temperature -10 F on December 9

PRECIPITATION:
December 2013 Precipitation Statistics:
Total precipitation 0.22 inches (0.73 inches
BELOW Normal)
Heaviest precipitation 0.19 inches on December 8

Snowfall total 5.7 inches (0.2 inches  BELOW  Normal)

Normal January 1 - December 31 precipitation =  28.93 inches
Total precipitation January 1 -
December 31 = 26.71 inches
January 1 -
December 31 precipitation deficit =  2.22 inches 

RELATED LINKS:
Lincoln Weather and Climate
Lincoln's Snowfall climatology
December 2013 Lincoln, NE, daily climate data
December 2013 Photo Gallery
Lincoln, NE Year 2013 Climate Statistics


Most of December 2013 was snow-free in eastern Nebraska

December 9, 2013 with a fresh cover of snowfall on East Campus of UNL