Tuesday, July 30, 2013

U.S. Daily Record Temperatures 2013 vs 2012

Analysis of Daily U.S. (all 50 States) Record Temperatures, 

January 1- July 29, 2012 compared to January 1 - July 29, 2013 

--------------------------------------------------------------------------------------------- 

What a stark contrast Year 2013 is compared to last year at this time.

Although the planet continues to run a "fever" and year 2013 is currently the 5th warmest on record for the globe, the U.S. has had a relatively mild or cool year so far. The global data set has 134 years of data (1880-2013).    Link:  monthly Global Temperature Anomaly maps

NOTE:  Definitions;
Highest Minimum temperature is the warmest daily low temperature for a calendar day
Lowest Maximum temperature is the coldest daily high temperature for a calendar day

Daily Records January 1 -July 29, 2012 and January 1 - July 29, 2013

Warm Records                                       2012                     2013
Maximum Temperatures                    26,305                    6,978
Highest Minimum temperatures        21,664                  10,259
Totals                                                   47,969                  17,237

Cold Records                                         2012                     2013
Minimum Temperatures                       2,681                   8,108
Lowest Maximum temperatures          4,219                 10,656
Totals                                                     6,900                 18,764

Warm Daily Records (January 1 - July 29):
Year 2012 total all Daily Warm Records = 47,969
Year 2013 total all Daily Warm Records = 17,237
Year 2013 Difference Daily Warm Records -30,732

Cold Daily Records (January 1 - July 29):
Year 2012 total all Daily Cold Records = 6,900
Year 2013 total all Daily Cold Records = 18,764
Year 2013 Difference Daily Cold Records = +11,864 

Total All daily records (January 1 - July 29)
Year 2012: 54,869 (47,969 warm; 6,900 cold)
Year 2013: 36,001 (17,237 warm; 18,764 cold)

(January 1 - July 29):
Year 2012 87.4% of the records were warm records (47,969/54,869)
Year 2012 12.6% of the records were cold records (6,900/54,869) 

Year 2013 47.9% of the records were warm records (17,237/36,001)
Year 2013 52.1% of the records were cold records (18,764/36,001)

 
Total Daily Precipitation Records:
January 1 - July 29, 2012:  16,517
January 1 - July 29, 2013:  17,367

Year 2013 difference = +815 daily records

Map of January 1 - July 29, 2013 Temperature Departure from Normal Map





Sunday, July 28, 2013

July 28, 2013: Record Cold Morning in Eastern Nebraska

Unseasonably cold air slipped down out of Canada into the Great Plains on July 27-28, 2013,  with the result that numerous record low temperatures were set in the morning of July 28, 2013.

New record Lows for July 28, 2013:

Location New Record   Old Record low, year
Omaha     50F         52F in 1994
Norfolk   45F         48F in 1925 
Lincoln   47F         47F (tied, originally set in 1994)

Outside Nebraska
Location       New Record   Old Record low, year
Grand Forks, ND    42F         44F in 1981
Sioux City, IA     45F         50F in 1994
Jamestown, ND      41F         42F in 1934
Mitchell, SD       43F         47F in 1925 
Huron, SD          41F         47F in 1883,1971
Sioux Falls, SD    44F         45F in 1925     

The first map shows the locations of the record low temperatures this morning (July 28, 2013) and record cold daytime high temperatures.

The second map is color coded showing that the coldest temperatures were found in North Dakota, eastern South Dakota, eastern Nebraska, and northern Missouri eastward into Minnesota, Iowa and the Midwest.

The third map has the observed morning low temperatures for the lower 48 states as well as Southern Canada.  It is interesting to note the 33F in the Canadian Prairies.  Undoubtedly there must have been some frost up there in that region.








LINK: Lincoln's climate records

Thursday, July 25, 2013

Summer 2013 Lincoln, NE, Climate Update



Summer 2013 Lincoln, NE, Weather and Climate Update 

(as of July 24, 2013)


Our Related Links: Lincoln Weather and Climate   and   Nebraska Weather Photo Gallery
AND:   Is Drought Returning to Eastern Nebraska?  

Lincoln's Precipitation Update:  


As of July 24, 2013 Lincoln's annual, 2013, total precipitation (18.62 inches) is within 0.52 inches of the total precipitation for all of last year (19.14 inches).  It has been very dry this July, in fact as of July 24, 2013 it is drier than July last year which saw 0.33 inches of rain.  SEE TABLE BELOW



Lincoln, NE: Year 2013 Precipitation (in inches) compared to normal (as of July 24, 2013)
red above normal, blue below normal

JAN
FEB
MAR
APR
MAY
JUN
JUL
AUG
SEP
OCT
NOV
DEC
ANNUAL
Normal
0.64
0.77
1.93
2.71
4.29
4.34
3.40
3.48
3.02
1.97
1.43
0.95
28.95
2013
0.73
0.54
2.12
4.02
8.44
2.49
0.28
.
.
.
.
.
18.62
2012
0.16
2.10
0.89
3.49
3.00
3.57
0.33
0.30
1.73
1.92
0.15
1.50
19.14
 Normal January 1 -June 30 precipitation = 14.68 inches.
Observed January 1 - June 30, 2013 Precipitation = 18.21 inches
Normal January 1 -July 31 precipitation = 18.08 inches.

Total precipitation in Lincoln, NE, from June 1, 2013 through July 24, 2013 is 2.77 inches and is 4.26 inches below normal for that time period. 

Lincoln's Days with 90F or Higher Temperatures:  

As of July 24, 2013 Lincoln has had a total of 21 days with daily high temperatures of 90F or higher.  The normal ANNUAL total is 41 days and we are only at the mid-point of our potential summer heat waves, so it is still possible to reach and go above the normal total this year.  The total for July 2013 so far is 13 days which is just below the normal of 14 to 15 days (14.6 days).



The total number of days with the temperature 
90 degrees F or higher for Lincoln, NE (as of July 24, 2013)
2013, 2012, 2011, 2010, 2009 2008, and (1936 and 1934, the worst years ever) and Normals.

2013
2012
2011
2010
2009
2008
1936
1934
NORMALS*
MARCH
0 days
1 day
0 days
0 days
0 days
0 days
0 days
0 days
0 days
APRIL
0 days
3 days
1 day
0 days
1 day
0 days
0 days
0 days
0.6 days
MAY 
1 day
7 days
2 days
0 days
2 days
0 days
2 days
13 days
1.5 days
JUNE
7 days
13 days
7 days
7 days
9 days
3 days
17 days
17 days
8.0 days
JULY
13 days
26 days
21 days
11 days
2 days
18 days
29 days
28 days
14.6 days
AUGUST
.
15 days
6 days
20 days
8 days
11 days
23 days
19 days
11.7 days
SEPTEMBER
.
7 days
3 days
4 days
0 days
1 day
11 days
1 day
4.3 days
OCTOBER
.
0 days
1 day
1 day
0 days
0 days
0 days
1 day
0.4 days
TOTAL
21 days
72 days
41 days
43 days
22 days
33 days
82 days
79 days
41.1 days
NORMALS* (standard 1981-2010, 30-year normals)


The July 2013 Dry Spell: 

The following map shows how dry it has been so far this July, 2013 in eastern Nebraska with much of the area receiving less than 50% of normal precipitation and portions of that area receiving less than 25% of normal precipitation for that time period.

Current Climate Summary Map
  


A look ahead: 

The following two maps show the outlook (forecast) for the time period 8 to 14 days from now (August 1-7, 2013).  The highest probability for Lincoln, NE  and all of Nebraska is a continuation of Near Normal precipitation with wetter than normal to our north and east and drier than normal to the south and west of Nebraska. And, the highest probability for temperatures in Lincoln Nebraska and all of Nebraska is Near Normal temperatures with cooler than normal to our north and warmer than normal to our southwest


 8-14 Day





8-14 Day

Our Related Links:

Lincoln Weather and Climate

Nebraska Weather Photo Gallery