National Weather Service United States Department of Commerce

Extreme Fire Weather Concerns for the Western U.S.; Severe Weather and Flooding Threats for the Central U.S.

Extremely critical fire weather conditions are expected to develop across the Great Basin and Southwest today, and exceptionally dry and windy conditions will promote rapid wildfire spread through the weekend. Scattered severe thunderstorms and heavy rain are possible across parts of the Ozark Plateau into lower Ohio Valley and parts of the northern Rockies into adjacent Great Plains. Read More >

Climate/Almanac Data   -    May Normals     -     May Records
 
May
 

 Site
 
(Click site name for report)

Avg
Temp
Normal Dept
From
Norm
Precip
Total
Normal Dept
From
Norm
  Burlington 71.2° (1) 63.7° +7.5° 3.16" 4.85" -1.69"
  Cedar Rapids 68.5° (2) 60.1° +8.4° 4.55" 4.15" +0.40"
  Davenport 68.7° 60.8° +7.9° 4.71" 4.25" +0.46"
  Dubuque 66.2° (T6) 58.8° +7.4° 5.45" 4.19" +1.26"
  Iowa City 69.5° 61.4° +8.1° 3.77" 4.21" -0.44"
  Moline 69.8° (1) 61.8° +8.0° 3.51" 4.32" -0.81"
The ranking is listed in parentheses (__) when within the "Top 10".
 
   May 2018 was about 7.5 to 8.5 degrees above normal.
   Precipitation totals for May 2018 range from around 1.7 inches below normal to around 1.3 inches above normal.
   Please see May Records for monthly record information.
 
 
The climate maps below are courtesy of the Midwest Regional Climate Center.
These maps become available around 10am on the first of the month.
 
Average
Temperature
Average
Temperature
Departure from Mean
Accumulated
Precipitation
Accumulated
Precipitation
Percent of Mean
NA NA NA NA
 
 
 
 
Climate/Almanac Data   -   Spring Normals     -     Spring Records
 
Spring
(Mar-May)
 

 Site
 (Click site name for report courtesy of the
   Iowa Environmental Mesonet.)

Avg
Temp
Normal Dept
From
Norm
Precip
Total
Normal Dept
From
Norm
Snowfall
Total
Normal Dept
From
Norm
  Burlington 51.3° 53.0° -1.7° 6.65" 11.40" -4.75" NA 2.0" NA
  Cedar Rapids 48.5° 48.6° -0.1° 6.88" 9.30" -2.42" NA 4.1" NA
  Davenport 48.9° 49.8° -1.1° 7.90" 10.28" -2.38" 11.9" NA NA
  Dubuque 46.3° 47.4° -1.1° 8.88" 10.26" -1.38" 16.2" 8.3" +7.9"
  Iowa City 49.7° 50.3° -0.6° 7.59" 9.93" -2.34" NA NA NA
  Moline 50.1° 50.8° -0.7° 7.74" 10.77" -3.03" 13.6" 4.9" +8.7"
The ranking is listed in parentheses (__) when within the "Top 10".
 
   Spring 2018 was about normal to 2 degrees below normal.
   Precipitation totals for Spring 2018 were about 1.4 to 4.8 inches below normal.
   Snowfall totals for Spring 2018 were around 8 to 9 inches above normal.
   Please see Spring Records for seasonal record information.
 
 
The climate maps below are courtesy of the Midwest Regional Climate Center.
 
Average
Temperature
Average
Temperature
Departure from Mean
Accumulated
Precipitation
Accumulated
Precipitation
Percent of Mean
Accumulated
Snowfall
Accumulated
Snowfall
Percent of Mean
NA NA NA NA NA NA
 
 
A LOOK AHEAD
 
Climate Prediction Center
 
June
Temperature Outlook
June
Precipitation Outlook
June - August
Temperature Outlook
June - August
Precipitation Outlook
NA NA NA NA