Sidney weather in May: Sidney, Nebraska: normal highs, lows, rain and records for May
Sidney in May has a normal high of 70°F and a normal low of 40°F, a daily mean of 55°F, rising from 64°F on the 1st to 77°F by the 31st. Measurable precipitation falls on 12 days in a normal May, 2.87 inches in all. (NOAA 1991-2020 normals)
In metric: a normal high of 21°C and low of 5°C, 73 mm of precipitation in May.
- NOAA stationSidney Municipal Airport
- Station IDUSW00024030
- Location41.10°N 102.98°W
- Elevation4,309 ft (1,313 m)
- Population6,483
- Jan 42° 14°
- Feb 44° 15°
- Mar 54° 23°
- Apr 61° 30°
- May 70° 40°
- Jun 82° 51°
- Jul 90° 57°
- Aug 88° 55°
- Sep 79° 46°
- Oct 64° 32°
- Nov 51° 21°
- Dec 42° 14°
Each month: normal high (large) and low, °F. Fill: the month's normal mean, colder blue to hotter red.
How warm is Sidney in May?
The normal high is 70°F and the normal low 40°F, for a daily mean of 55.2°F. May is 9.9°F warmer than April and 11.3°F cooler than June. May is the 5th warmest month of the year in Sidney and the 2nd wettest. Across the month the normal high rises 13°F, from 64°F on May 1 to 77°F on May 31. From one year to the next May's mean temperature typically moves about 3.1°F either way (NOAA's standard deviation), so roughly two Mays in three average between 52°F and 58°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 39%).
| Day | High | Low | Chance of 0.01 in | Chance of 0.10 in |
|---|---|---|---|---|
| May 1 | 64°F | 34°F | 35% | 17% |
| May 8 | 67°F | 37°F | 36% | 18% |
| May 15 | 70°F | 40°F | 37% | 19% |
| May 22 | 73°F | 43°F | 38% | 20% |
| May 31 | 77°F | 46°F | 38% | 20% |
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 | 64°F | 34°F | 35% | 17% | 14 h |
| May 2 | 64°F | 34°F | 35% | 17% | 14 h |
| May 3 | 65°F | 35°F | 36% | 17% | 14 h |
| May 4 | 65°F | 35°F | 36% | 17% | 14 h |
| May 5 | 65°F | 36°F | 36% | 17% | 14 h 10 min |
| May 6 | 66°F | 36°F | 36% | 17% | 14 h 10 min |
| May 7 | 66°F | 36°F | 36% | 18% | 14 h 10 min |
| May 8 | 67°F | 37°F | 36% | 18% | 14 h 10 min |
| May 9 | 67°F | 37°F | 37% | 18% | 14 h 10 min |
| May 10 | 67°F | 38°F | 37% | 18% | 14 h 20 min |
| May 11 | 68°F | 38°F | 37% | 18% | 14 h 20 min |
| May 12 | 68°F | 39°F | 37% | 18% | 14 h 20 min |
| May 13 | 69°F | 39°F | 37% | 18% | 14 h 20 min |
| May 14 | 69°F | 40°F | 37% | 19% | 14 h 20 min |
| May 15 | 70°F | 40°F | 37% | 19% | 14 h 30 min |
| May 16 | 70°F | 40°F | 38% | 19% | 14 h 30 min |
| May 17 | 71°F | 41°F | 38% | 19% | 14 h 30 min |
| May 18 | 71°F | 41°F | 38% | 19% | 14 h 30 min |
| May 19 | 71°F | 42°F | 38% | 20% | 14 h 30 min |
| May 20 | 72°F | 42°F | 38% | 20% | 14 h 40 min |
| May 21 | 72°F | 43°F | 38% | 20% | 14 h 40 min |
| May 22 | 73°F | 43°F | 38% | 20% | 14 h 40 min |
| May 23 | 73°F | 43°F | 38% | 20% | 14 h 40 min |
| May 24 | 74°F | 44°F | 39% | 20% | 14 h 40 min |
| May 25 | 74°F | 44°F | 39% | 20% | 14 h 40 min |
| May 26 | 74°F | 45°F | 39% | 20% | 14 h 50 min |
| May 27 | 75°F | 45°F | 39% | 20% | 14 h 50 min |
| May 28 | 75°F | 45°F | 39% | 20% | 14 h 50 min |
| May 29 | 76°F | 46°F | 39% | 20% | 14 h 50 min |
| May 30 | 76°F | 46°F | 39% | 20% | 14 h 50 min |
| May 31 | 77°F | 46°F | 38% | 20% | 14 h 50 min |
- Normal high
- 70°FMay average
- Normal low
- 40°FMay average
- Precipitation
- 2.87 inmonth total
- Days with precipitation
- 120.01 inch or more
- Days at 90°F or more
- 1
- Nights at 32°F or colder
- 5
- Daylight
- 14 h to 14 h 50 minMay 1 to May 31
- Days at 70°F or more
- 17
- Days at 80°F or more
- 7
- Sunshine
- 76%of clear-sky sunlight (NASA)
Source: NOAA NCEI 1991-2020 daily normals, station USW00024030; monthly normals. Daylight is computed from the place's latitude with NOAA's solar equations.
Does it rain in Sidney in May?
On a given May day the chance of 0.01 inch or more is 37% on average, highest around May 25 (39%). In all, 2.87 in falls on 12 days of a normal May.
In a normal May in Sidney, 1 days reach 90°F and 5 nights fall to freezing.
Source: NOAA NCEI 1991-2020 daily and monthly normals, station USW00024030.
How humid and windy is Sidney in May?
At 3 p.m. the normal temperature is 73°F with 38% relative humidity and a dew point of 45°F; at 6 a.m. it is 54°F with 77% humidity. The wind averages 11.0 mph, most often from the southeast in the afternoon. A dew point under 50°F feels dry.
| Time | Temperature | Dew point | Humidity | Wind | Clear or few clouds |
|---|---|---|---|---|---|
| 6 a.m. | 54°F | 47°F | 77% | 9.3 mph | – |
| 9 a.m. | 64°F | 47°F | 54% | 12.1 mph | 70% |
| noon | 71°F | 46°F | 41% | 12.6 mph | 72% |
| 3 p.m. | 73°F | 45°F | 38% | 13.2 mph | 69% |
| 6 p.m. | 68°F | 46°F | 46% | 12.3 mph | 71% |
| 9 p.m. | 58°F | 47°F | 67% | 10.0 mph | 70% |
Source: NOAA NCEI 1991-2020 hourly normals, station USW00024030. 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 Sidney?
The warmest May temperature on this station's record (since 1948) is 98°F, on May 22, 2012; the coldest is 16°F, on May 9, 2002. The wettest May brought 7.91 in (2015); the snowiest, 11.0 inches (1979).
The May mean against the 1991-2020 normal of 55.2°F: 2021 53.5°F (−1.7), 2022 54.8°F (−0.4), 2023 57.9°F (+2.6), 2024 57.1°F (+1.9), 2025 55.7°F (+0.5), 2026 57.2°F (+2.0). 4 of 6 ran warmer than normal.
| May | Mean | Against normal | Precip. |
|---|---|---|---|
| 2021 | 53.5°F | −1.7°F | 1.88 in |
| 2022 | 54.8°F | −0.4°F | 1.54 in |
| 2023 | 57.9°F | +2.6°F | 5.20 in |
| 2024 | 57.1°F | +1.9°F | 0.58 in |
| 2025 | 55.7°F | +0.5°F | 3.49 in |
| 2026 | 57.2°F | +2.0°F | 1.12 in |
Source: records: ACIS, station USW00024030; recent months: ACIS, station USW00024030. Records and recent months use complete months only.
How does May in Sidney compare across Nebraska?
Across the 137 places PlainClimate covers in Nebraska, May normal highs run from 64°F in Harrison to 76°F in Beaver City; Sidney's is 70°F.
Source: NOAA NCEI 1991-2020 monthly normals for every station in the state.