National Weather Service United States Department of Commerce

Unsettled Weather in the Eastern U.S. through Memorial Day

Showers and thunderstorms are expected from Texas to the Northeast through Tuesday. Heavy rain will create mainly localized areas of flash flooding across the central Gulf Coast into the Appalachians. Elevated to Critical fire weather conditions due to gusty winds and low humidity are expected through Tuesday across Oregon and Nevada. Showers and thunderstorms will develop over the Northwest. 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 60.2° 63.0° -2.8° 5.77" 4.93" +0.84"
  Cedar Rapids 58.2° 60.3° -2.1° 2.70" 4.25" -1.55"
  Davenport 60.2° 61.7° -1.5° 4.07" 4.82" -0.75"
  Dubuque 58.1° 58.8° -0.7° 2.72" 4.30" -1.58"
  Iowa City 60.7° 62.6° -1.9° 4.33" 4.48" -0.15"
  Moline 60.6° 62.5° -1.9° 6.59" 4.67" +1.92"
The ranking is listed in parentheses (__) when within the "Top 10".
 
   May 2021 was about 1 to 3 degrees below normal.
   Precipitation totals for May 2021 were about 2 inches above normal to 1.6 inches below 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 52.7° 52.0° +0.7° 13.26" 11.28" +1.98" NA 2.0" NA
  Cedar Rapids 49.6° 48.6° +1.0°

5.88"

9.80" -3.92" NA 4.1" NA
  Davenport 51.6° 50.2° +1.4° 9.40" 10.77" -1.37" 1.8" NA NA
  Dubuque 49.1° 47.2° +1.9° 6.51" 10.61" -4.1" 3.8" 8.3" -4.5"
  Iowa City 52.0° 51.1° +0.9° 9.33" 10.45" -1.12" NA NA NA
  Moline 52.4° 51.2° +1.2° 12.94" 11.10" +1.84" 1.8" 4.9" -3.1"
The ranking is listed in parentheses (__) when within the "Top 10".
 
   Spring 2021 temperatures were about 0.5 degrees 2 degrees above normal.
   Precipitation totals for Spring 2021 were about 2 inches above normal to about normal to 4 inches below normal.
   Snowfall totals for Spring 2021 were around below normal for Moline and Dubuque.
   Please see Spring Records for seasonal 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
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