Springfield weather in May: Springfield, Illinois: normal highs, lows, rain and records for May
Springfield in May has a normal high of 76°F and a normal low of 54°F, a daily mean of 65°F, rising from 71°F on the 1st to 80°F by the 31st. Measurable precipitation falls on 13 days in a normal May, 4.52 inches in all. (NOAA 1991-2020 normals)
In metric: a normal high of 24°C and low of 12°C, 115 mm of precipitation in May.
- NOAA stationSpringfield Abraham Lincoln Capital Airport
- Station IDUSW00093822
- Location39.84°N 89.68°W
- Elevation594 ft (181 m)
- From the center4 miles
- Population112,949
- Jan 36° 20°
- Feb 41° 24°
- Mar 53° 33°
- Apr 66° 43°
- May 76° 54°
- Jun 84° 63°
- Jul 87° 66°
- Aug 85° 64°
- Sep 80° 56°
- Oct 67° 45°
- Nov 53° 34°
- Dec 41° 25°
Each month: normal high (large) and low, °F. Fill: the month's normal mean, colder blue to hotter red.
How warm is Springfield in May?
The normal high is 76°F and the normal low 54°F, for a daily mean of 65.1°F. May is 10.7°F warmer than April and 8.6°F cooler than June. May is the 5th warmest month of the year in Springfield and the 2nd wettest. Across the month the normal high rises 9°F, from 71°F on May 1 to 80°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 62°F and 68°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 42%).
| Day | High | Low | Chance of 0.01 in | Chance of 0.10 in |
|---|---|---|---|---|
| May 1 | 71°F | 49°F | 42% | 27% |
| May 8 | 73°F | 52°F | 41% | 27% |
| May 15 | 75°F | 54°F | 40% | 26% |
| May 22 | 78°F | 57°F | 39% | 25% |
| May 31 | 80°F | 59°F | 37% | 24% |
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 | 71°F | 49°F | 42% | 27% | 13 h 50 min |
| May 2 | 71°F | 50°F | 42% | 27% | 13 h 50 min |
| May 3 | 72°F | 50°F | 42% | 27% | 14 h |
| May 4 | 72°F | 50°F | 42% | 27% | 14 h |
| May 5 | 72°F | 51°F | 42% | 27% | 14 h |
| May 6 | 73°F | 51°F | 42% | 27% | 14 h |
| May 7 | 73°F | 51°F | 42% | 27% | 14 h |
| May 8 | 73°F | 52°F | 41% | 27% | 14 h 10 min |
| May 9 | 74°F | 52°F | 41% | 27% | 14 h 10 min |
| May 10 | 74°F | 52°F | 41% | 27% | 14 h 10 min |
| May 11 | 74°F | 53°F | 41% | 26% | 14 h 10 min |
| May 12 | 75°F | 53°F | 41% | 26% | 14 h 10 min |
| May 13 | 75°F | 53°F | 41% | 26% | 14 h 20 min |
| May 14 | 75°F | 54°F | 41% | 26% | 14 h 20 min |
| May 15 | 75°F | 54°F | 40% | 26% | 14 h 20 min |
| May 16 | 76°F | 55°F | 40% | 26% | 14 h 20 min |
| May 17 | 76°F | 55°F | 40% | 25% | 14 h 20 min |
| May 18 | 76°F | 55°F | 40% | 25% | 14 h 30 min |
| May 19 | 77°F | 56°F | 39% | 25% | 14 h 30 min |
| May 20 | 77°F | 56°F | 39% | 25% | 14 h 30 min |
| May 21 | 77°F | 56°F | 39% | 25% | 14 h 30 min |
| May 22 | 78°F | 57°F | 39% | 25% | 14 h 30 min |
| May 23 | 78°F | 57°F | 39% | 25% | 14 h 30 min |
| May 24 | 78°F | 57°F | 39% | 25% | 14 h 40 min |
| May 25 | 79°F | 58°F | 38% | 25% | 14 h 40 min |
| May 26 | 79°F | 58°F | 38% | 25% | 14 h 40 min |
| May 27 | 79°F | 58°F | 38% | 24% | 14 h 40 min |
| May 28 | 79°F | 59°F | 38% | 24% | 14 h 40 min |
| May 29 | 80°F | 59°F | 38% | 24% | 14 h 40 min |
| May 30 | 80°F | 59°F | 37% | 24% | 14 h 40 min |
| May 31 | 80°F | 59°F | 37% | 24% | 14 h 50 min |
- Normal high
- 76°FMay average
- Normal low
- 54°FMay average
- Precipitation
- 4.52 inmonth total
- Days with precipitation
- 130.01 inch or more
- Days at 90°F or more
- 1
- Daylight
- 13 h 50 min to 14 h 50 minMay 1 to May 31
- Days at 70°F or more
- 22
- Days at 80°F or more
- 12
- Sunshine
- 73%of clear-sky sunlight (NASA)
Source: NOAA NCEI 1991-2020 daily normals, station USW00093822; monthly normals. Daylight is computed from the place's latitude with NOAA's solar equations.
Does it rain in Springfield in May?
On a given May day the chance of 0.01 inch or more is 40% on average, highest around May 1 (42%). In all, 4.52 in falls on 13 days of a normal May, 1 of them with an inch or more.
In a normal May in Springfield, 1 days reach 90°F.
Source: NOAA NCEI 1991-2020 daily and monthly normals, station USW00093822.
How humid and windy is Springfield in May?
At 3 p.m. the normal temperature is 78°F with 50% relative humidity and a dew point of 58°F; at 6 a.m. it is 63°F with 83% humidity. The wind averages 8.5 mph, most often from the south-southwest in the afternoon.
| Time | Temperature | Dew point | Humidity | Wind | Clear or few clouds |
|---|---|---|---|---|---|
| 6 a.m. | 63°F | 57°F | 83% | 6.7 mph | 63% |
| 9 a.m. | 71°F | 58°F | 65% | 9.5 mph | 63% |
| noon | 76°F | 58°F | 54% | 10.6 mph | 56% |
| 3 p.m. | 78°F | 58°F | 50% | 11.1 mph | 53% |
| 6 p.m. | 75°F | 58°F | 55% | 9.1 mph | 64% |
| 9 p.m. | 68°F | 58°F | 72% | 6.7 mph | 71% |
Source: NOAA NCEI 1991-2020 hourly normals, station USW00093822. 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 Springfield?
The warmest May temperature on Springfield's official record (since 1879) is 101°F, on May 31, 1934; the coldest is 28°F, on May 10, 1966. The wettest May brought 12.01 in (1899).
The May mean against the 1991-2020 normal of 65.1°F: 2021 62.5°F (−2.5), 2022 66.6°F (+1.5), 2023 65.5°F (+0.5), 2025 63.0°F (−2.1), 2026 64.4°F (−0.7). 2 of 5 ran warmer than normal.
| May | Mean | Against normal | Precip. |
|---|---|---|---|
| 2021 | 62.5°F | −2.5°F | 6.05 in |
| 2022 | 66.6°F | +1.5°F | 3.39 in |
| 2023 | 65.5°F | +0.5°F | 3.52 in |
| 2025 | 63.0°F | −2.1°F | 2.66 in |
| 2026 | 64.4°F | −0.7°F | 2.16 in |
Source: records: ACIS, NWS threaded record SPIthr; recent months: ACIS, station USW00093822. Records and recent months use complete months only.
How does May in Springfield 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; Springfield's is 76°F.
Source: NOAA NCEI 1991-2020 monthly normals for every station in the state.