Moline weather in May: Moline, Illinois: normal highs, lows, rain and records for May
Moline in May has a normal high of 74°F and a normal low of 51°F, a daily mean of 63°F, rising from 69°F on the 1st to 79°F by the 31st. Measurable precipitation falls on 12 days in a normal May, 4.67 inches in all. (NOAA 1991-2020 normals)
In metric: a normal high of 23°C and low of 11°C, 119 mm of precipitation in May.
- NOAA stationMoline Quad City International Airport
- Station IDUSW00014923
- Location41.47°N 90.52°W
- Elevation592 ft (180 m)
- From the center2 miles
- Population42,442
- Jan 32° 15°
- Feb 37° 19°
- Mar 50° 30°
- Apr 63° 40°
- May 74° 51°
- Jun 83° 61°
- Jul 86° 65°
- Aug 84° 63°
- Sep 78° 54°
- Oct 65° 43°
- Nov 50° 31°
- Dec 37° 21°
Each month: normal high (large) and low, °F. Fill: the month's normal mean, colder blue to hotter red.
How warm is Moline in May?
The normal high is 74°F and the normal low 51°F, for a daily mean of 62.5°F. May is 11.1°F warmer than April and 9.6°F cooler than June. May is the 5th warmest month of the year in Moline and the 2nd wettest. Across the month the normal high rises 10°F, from 69°F on May 1 to 79°F on May 31. From one year to the next May's mean temperature typically moves about 3.2°F either way (NOAA's standard deviation), so roughly two Mays in three average between 59°F and 66°F.
Bars above: each day's normal high to low. Columns below: the chance of 0.01 inch or more of precipitation that day, on a scale of 0 to 100% (highest 40%).
| Day | High | Low | Chance of 0.01 in | Chance of 0.10 in |
|---|---|---|---|---|
| May 1 | 69°F | 46°F | 40% | 26% |
| May 8 | 71°F | 48°F | 40% | 26% |
| May 15 | 74°F | 51°F | 40% | 26% |
| May 22 | 76°F | 53°F | 39% | 26% |
| May 31 | 79°F | 56°F | 39% | 26% |
Every day of May: normal high, low and chance of precipitation (warmest afternoon May 31, coldest night May 1)
| Day | High | Low | Chance of 0.01 in | Chance of 0.10 in | Daylight |
|---|---|---|---|---|---|
| May 1 | 69°F | 46°F | 40% | 26% | 14 h |
| May 2 | 69°F | 46°F | 40% | 26% | 14 h |
| May 3 | 69°F | 46°F | 40% | 26% | 14 h |
| May 4 | 70°F | 47°F | 40% | 26% | 14 h |
| May 5 | 70°F | 47°F | 40% | 26% | 14 h 10 min |
| May 6 | 70°F | 48°F | 40% | 26% | 14 h 10 min |
| May 7 | 71°F | 48°F | 40% | 26% | 14 h 10 min |
| May 8 | 71°F | 48°F | 40% | 26% | 14 h 10 min |
| May 9 | 72°F | 49°F | 40% | 26% | 14 h 20 min |
| May 10 | 72°F | 49°F | 40% | 26% | 14 h 20 min |
| May 11 | 72°F | 49°F | 40% | 26% | 14 h 20 min |
| May 12 | 73°F | 50°F | 40% | 26% | 14 h 20 min |
| May 13 | 73°F | 50°F | 40% | 26% | 14 h 20 min |
| May 14 | 73°F | 50°F | 40% | 26% | 14 h 30 min |
| May 15 | 74°F | 51°F | 40% | 26% | 14 h 30 min |
| May 16 | 74°F | 51°F | 40% | 26% | 14 h 30 min |
| May 17 | 74°F | 52°F | 40% | 26% | 14 h 30 min |
| May 18 | 75°F | 52°F | 40% | 26% | 14 h 30 min |
| May 19 | 75°F | 52°F | 40% | 26% | 14 h 40 min |
| May 20 | 75°F | 53°F | 40% | 26% | 14 h 40 min |
| May 21 | 76°F | 53°F | 40% | 26% | 14 h 40 min |
| May 22 | 76°F | 53°F | 39% | 26% | 14 h 40 min |
| May 23 | 76°F | 54°F | 39% | 26% | 14 h 40 min |
| May 24 | 77°F | 54°F | 39% | 26% | 14 h 50 min |
| May 25 | 77°F | 54°F | 39% | 26% | 14 h 50 min |
| May 26 | 77°F | 55°F | 39% | 26% | 14 h 50 min |
| May 27 | 78°F | 55°F | 39% | 26% | 14 h 50 min |
| May 28 | 78°F | 55°F | 39% | 26% | 14 h 50 min |
| May 29 | 78°F | 56°F | 39% | 26% | 14 h 50 min |
| May 30 | 79°F | 56°F | 39% | 26% | 14 h 50 min |
| May 31 | 79°F | 56°F | 39% | 26% | 15 h |
- Normal high
- 74°FMay average
- Normal low
- 51°FMay average
- Precipitation
- 4.67 inmonth total
- Days with precipitation
- 120.01 inch or more
- Days at 90°F or more
- 1
- Daylight
- 14 h to 15 hMay 1 to May 31
- Days at 70°F or more
- 20
- Days at 80°F or more
- 10
- Sunshine
- 72%of clear-sky sunlight (NASA)
Source: NOAA NCEI 1991-2020 daily normals, station USW00014923; monthly normals. Daylight is computed from the place's latitude with NOAA's solar equations.
Does it rain in Moline in May?
On a given May day the chance of 0.01 inch or more is 40% on average, highest around May 7 (40%). In all, 4.67 in falls on 12 days of a normal May, 1 of them with an inch or more.
In a normal May in Moline, 1 days reach 90°F.
Source: NOAA NCEI 1991-2020 daily and monthly normals, station USW00014923.
How humid and windy is Moline in May?
At 3 p.m. the normal temperature is 76°F with 49% relative humidity and a dew point of 55°F; at 6 a.m. it is 60°F with 82% humidity. The wind averages 7.5 mph, most often from the southwest in the afternoon.
| Time | Temperature | Dew point | Humidity | Wind | Clear or few clouds |
|---|---|---|---|---|---|
| 6 a.m. | 60°F | 55°F | 82% | 5.7 mph | 60% |
| 9 a.m. | 68°F | 56°F | 65% | 8.3 mph | 60% |
| noon | 74°F | 56°F | 53% | 10.2 mph | 55% |
| 3 p.m. | 76°F | 55°F | 49% | 10.6 mph | 59% |
| 6 p.m. | 74°F | 55°F | 52% | 8.7 mph | 63% |
| 9 p.m. | 66°F | 56°F | 71% | 5.7 mph | 67% |
Source: NOAA NCEI 1991-2020 hourly normals, station USW00014923. Hourly normals exist only for NOAA's first-order stations; a dash where NOAA publishes no value for that hour (the sky at some hours).
What are the records for May in Moline?
The warmest May temperature on Moline's official record (since 1874) is 104°F, on May 31, 1934; the coldest is 25°F, on May 3, 2005. The wettest May brought 11.43 in (1974).
The May mean against the 1991-2020 normal of 62.5°F: 2021 60.6°F (−1.9), 2022 65.5°F (+3.0), 2023 65.7°F (+3.2), 2024 65.7°F (+3.2), 2025 60.7°F (−1.8), 2026 61.9°F (−0.6). 3 of 6 ran warmer than normal.
| May | Mean | Against normal | Precip. |
|---|---|---|---|
| 2021 | 60.6°F | −1.9°F | 6.59 in |
| 2022 | 65.5°F | +3.0°F | 2.61 in |
| 2023 | 65.7°F | +3.2°F | 1.38 in |
| 2024 | 65.7°F | +3.2°F | 3.11 in |
| 2025 | 60.7°F | −1.8°F | 5.58 in |
| 2026 | 61.9°F | −0.6°F | 2.27 in |
Source: records: ACIS, NWS threaded record MLIthr; recent months: ACIS, station USW00014923. Records and recent months use complete months only.
How does May in Moline compare across Illinois?
Across the 144 places PlainClimate covers in Illinois, May normal highs run from 67°F in Waukegan to 79°F in Belleville; Moline's is 74°F.
Source: NOAA NCEI 1991-2020 monthly normals for every station in the state.