Sidney Weather in May
Average highs run from 64°F on May 1 to 73°F on May 31, and lows from 37°F to 47°F. Normal precipitation for the month is 3.88 in.
May day by day
The normal high and low for each date, and the record, in °F.
- Normal low
- Normal high
- Record high
- Record low
May at a glance
- Average high
- 69°F
- Average low
- 42°F
- Precipitation
- 3.88 in
- Snowfall
- 0.1 in
- Record high
- 94°FMay 22, 1911
- Record low
- 20°FMay 1, 1978
- Chance of a freeze
- 79%
- Days of 90°F or more
- 0.5
- Daylight
- 14 h 04 min to 15 h 03 min
- Cloud cover
- 68%
- Humidity
- 79%
- Dew point
- 48°F
- Wind
- 4.7 mph
Every day of the month
A wet day has at least 0.01 inch of precipitation; snow means at least 0.1 inch of snowfall.
| Date | Normal high | Normal low | Record high | Record low | Chance wet | Chance of snow |
|---|---|---|---|---|---|---|
| May 1 | 64°F | 37°F | 85°F 1936 | 20°F 1978 | 2% | |
| May 2 | 65°F | 38°F | 87°F 2001 | 24°F 1941 | 2% | |
| May 3 | 65°F | 38°F | 88°F 2001 | 22°F 1908 | 2% | |
| May 4 | 66°F | 38°F | 89°F 2001 | 24°F 1978 | 2% | |
| May 5 | 66°F | 39°F | 89°F 1944 | 23°F 1966 | 1% | |
| May 6 | 66°F | 39°F | 89°F 1944 | 23°F 1974 | 1% | |
| May 7 | 67°F | 39°F | 87°F 1982 | 21°F 1967 | 1% | |
| May 8 | 67°F | 40°F | 86°F 1939 | 23°F 1956 | 1% | |
| May 9 | 68°F | 40°F | 88°F 1939 | 22°F 1956 | 1% | |
| May 10 | 68°F | 40°F | 90°F 1979 | 21°F 1962 | 1% | |
| May 11 | 68°F | 41°F | 88°F 1911 | 23°F 1966 | 1% | |
| May 12 | 69°F | 41°F | 88°F 1911 | 22°F 1938 | 1% | |
| May 13 | 69°F | 41°F | 88°F 2022 | 24°F 2020 | 1% | |
| May 14 | 69°F | 41°F | 86°F 2004 | 25°F 2020 | 1% | |
| May 15 | 69°F | 42°F | 86°F 1940 | 25°F 2020 | 1% | |
| May 16 | 70°F | 42°F | 89°F 1998 | 25°F 1936 | 1% | |
| May 17 | 70°F | 42°F | 88°F 1962 | 25°F 1957 | 1% | |
| May 18 | 70°F | 43°F | 90°F 2017 | 25°F 1983 | 1% | |
| May 19 | 71°F | 43°F | 89°F 1996 | 25°F 1944 | 1% | |
| May 20 | 71°F | 43°F | 89°F 1996 | 26°F 2002 | 1% | |
| May 21 | 71°F | 44°F | 89°F 2021 | 26°F 2002 | 1% | |
| May 22 | 71°F | 44°F | 94°F 1911 | 27°F 1935 | 1% | |
| May 23 | 72°F | 44°F | 94°F 1911 | 29°F 1929 | 0% | |
| May 24 | 72°F | 45°F | 91°F 1911 | 22°F 1963 | 0% | |
| May 25 | 72°F | 45°F | 91°F 1975 | 22°F 1956 | 0% | |
| May 26 | 72°F | 45°F | 88°F 2010 | 30°F 1956 | 0% | |
| May 27 | 73°F | 46°F | 92°F 2010 | 26°F 1969 | 0% | |
| May 28 | 73°F | 46°F | 91°F 2010 | 29°F 1983 | 0% | |
| May 29 | 73°F | 46°F | 92°F 1911 | 31°F 1915 | 0% | |
| May 30 | 73°F | 47°F | 90°F 1911 | 30°F 1932 | 0% | |
| May 31 | 73°F | 47°F | 91°F 2006 | 29°F 1965 | 0% |
Chance of rain
- Chance of a wet day
- Chance of snowfall
Sunrise and sunset
Times for 2026, local time (EDT).
- May 1
- sunrise 5:57 AM, sunset 8:01 PM
- May 31
- sunrise 5:28 AM, sunset 8:31 PM
Other months
Sources
Normals: NOAA NCEI U.S. Climate Normals, 1991-2020, station USC00302454 (E Sidney), public domain. Records: NOAA GHCN-Daily, station USC00306085, every year on file, quality-flagged values removed. Cloud, humidity, wind and sunshine: NASA POWER (MERRA-2, CERES and GEWEX SRB), 1991-2020. The data was obtained from the National Aeronautics and Space Administration (NASA) Langley Research Center's Prediction Of Worldwide Energy Resources (POWER) project funded through the NASA Earth Science Division: POWER Daily API v2, accessed 2026-09-24. Sun and moon: computed with the NOAA solar equations and Meeus.