World Resorts USA Iowa City Weather

Iowa City weather in May

Weather in Iowa City: May

Average day temperature: 67.6°F
Average night temperature: 55.0°F
Number of sunny days: 10 days
Day length: 14.0 - 15.0 hours
Number of rainy days: 4 days
Precipitation totals: 1.7 in.

Air temperature in May, °F

Show year:
2024
2023
2022
1
3
5
7
9
11
13
15
17
19
21
23
25
27
29
31
0
13
26
39
52
65
78
91
104
Day temperature   
Night temperature

The highest day temperature during May of 2024 was 79°F. At the same time the lowest night temperature was 44°F. Daily and nightly averages during May were 69.9°F and 55.4°F.

Sunny, partly cloudy and cloudy days
Sunny days
Partly cloudy days
Cloudy days
32%
32%
35%

Number of sunny, partly cloudy and cloudy days in May is almost equal.

Precipitation total in May, in.

jan
feb
mar
apr
may
jun
jul
aug
sep
oct
nov
dec
0.0
0.3
0.6
0.9
1.2
1.5
1.8
2.1
1.0
1.1
1.5
1.3
1.1
1.0
1.1
1.5
1.7
1.3
1.1

Precipitation total value in Iowa City in May is 1.7 in. Other months of the year show relatively similar values.

Wind speed in May, mph
jan
feb
mar
apr
may
jun
jul
aug
sep
oct
nov
dec
0.0
2.0
3.9
5.9
7.9
9.9
11.8
13.8
15.8
9.6
10.2
10.0
9.0
7.9
7.1
8.6
11.4
11.5
10.1
9.5
9.6
10.2
10.0
9.0
7.9
7.1
8.6
9.6
11.4
11.5
10.1
9.5

The average wind speed value in May is 9.6 mph

Average sunny hours
jan
feb
mar
apr
may
jun
jul
aug
sep
oct
nov
dec
0.0
1.6
3.2
4.9
6.5
8.1
9.7
11.4
4.3
5.6
7.3
9.4
9.5
9.0
9.3
6.7
5.8
5.5
4.1
4.3
5.6
7.3
9.4
9.5
9.0
9.3
7.5
6.7
5.8
5.5
4.1

This chart shows average number of hours during the day when sunlight can reach the ground. It depends on day length and cloudiness during the day. The average number of sunny hours in May is: 7.5.

Best time for vacation in Iowa City

Sunniest months:
September 19 days
August 17 days
October 16 days
Warmest months:
August 82.4 °F
July 81.2 °F
June 78.7 °F
Coldest months:
January 26.6 °F
February 31.5 °F
December 36.3 °F
Rainiest months:
May 4 days
April 3 days
June 3 days
Windiest months:
March 11.5 mph
April 11.4 mph
November 10.2 mph

Iowa City on a weather map

Leaflet | Tiles © Esri
Places in USA:
Name
°F
+59°F
+64°F
+75°F
+75°F
+63°F
+66°F
+79°F
+57°F
+84°F
+59°F
+55°F
+90°F
+88°F
+77°F
+43°F
24 Hours Forecast
Iowa City
Local time: 12:51
April 04, friday
1500
45°F
W
11 mph
1800
43°F
SW
9 mph
2100
43°F
S
10 mph
April 05, saturday
0000
41°F
S
11 mph
0300
41°F
S
13 mph
0600
39°F
S
13 mph
0900
43°F
S
17 mph
1200
43°F
S
16 mph
Units of measurement: °C / °F