Okanogan Weather in May
Average highs run from 68°F on May 1 to 75°F on May 31, and lows from 41°F to 49°F. Normal precipitation for the month is 1.19 in over about 8 wet days.
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
- 72°F
- Average low
- 45°F
- Precipitation
- 1.19 in
- Record high
- 96°FMay 18, 2006
- Record low
- 22°FMay 1, 2008
- Chance of a freeze
- 47%
- Days of 90°F or more
- 0.8
- Daylight
- 14 h 34 min to 15 h 49 min
- Cloud cover
- 64%
- Humidity
- 62%
- Dew point
- 37°F
- Wind
- 4.9 mph
Every day of the month
A wet day has at least 0.01 inch of precipitation.
| Date | Normal high | Normal low | Record high | Record low | Chance wet |
|---|---|---|---|---|---|
| May 1 | 68°F | 41°F | 85°F 1998 | 22°F 2008 | 19% |
| May 2 | 69°F | 41°F | 86°F 2023 | 27°F 2008 | 20% |
| May 3 | 69°F | 41°F | 86°F 2016 | 27°F 2002 | 20% |
| May 4 | 69°F | 42°F | 90°F 2023 | 24°F 2010 | 20% |
| May 5 | 70°F | 42°F | 87°F 1998 | 25°F 1999 | 20% |
| May 6 | 70°F | 42°F | 86°F 1998 | 23°F 2002 | 21% |
| May 7 | 70°F | 43°F | 90°F 2013 | 28°F 2010 | 21% |
| May 8 | 71°F | 43°F | 89°F 2013 | 27°F 1999 | 21% |
| May 9 | 71°F | 43°F | 90°F 2013 | 27°F 1999 | 21% |
| May 10 | 71°F | 44°F | 91°F 2013 | 26°F 1999 | 21% |
| May 11 | 72°F | 44°F | 89°F 2019 | 31°F 1999 | 22% |
| May 12 | 72°F | 44°F | 89°F 2024 | 30°F 2004 | 22% |
| May 13 | 72°F | 45°F | 88°F 2018 | 28°F 2009 | 22% |
| May 14 | 72°F | 45°F | 89°F 2023 | 34°F 2002 | 23% |
| May 15 | 73°F | 45°F | 89°F 2012 | 33°F 2009 | 23% |
| May 16 | 73°F | 45°F | 94°F 2006 | 31°F 1998 | 23% |
| May 17 | 73°F | 46°F | 95°F 2006 | 33°F 2001 | 24% |
| May 18 | 73°F | 46°F | 96°F 2006 | 29°F 2003 | 24% |
| May 19 | 73°F | 46°F | 92°F 2023 | 30°F 2003 | 24% |
| May 20 | 74°F | 47°F | 94°F 2023 | 32°F 2007 | 25% |
| May 21 | 74°F | 47°F | 87°F 2015 | 29°F 2010 | 25% |
| May 22 | 74°F | 47°F | 91°F 2001 | 32°F 2010 | 25% |
| May 23 | 74°F | 47°F | 96°F 2001 | 32°F 2005 | 25% |
| May 24 | 74°F | 47°F | 91°F 2001 | 31°F 2010 | 25% |
| May 25 | 75°F | 48°F | 90°F 2001 | 35°F 2010 | 25% |
| May 26 | 75°F | 48°F | 90°F 2001 | 36°F 2024 | 25% |
| May 27 | 75°F | 48°F | 86°F 2005 | 36°F 2011 | 25% |
| May 28 | 75°F | 48°F | 94°F 2005 | 39°F 1998 | 25% |
| May 29 | 75°F | 48°F | 92°F 2009 | 33°F 2001 | 25% |
| May 30 | 75°F | 49°F | 92°F 2009 | 33°F 2024 | 25% |
| May 31 | 75°F | 49°F | 89°F 2007 | 40°F 2004 | 25% |
Chance of rain
- Chance of a wet day
Sunrise and sunset
Times for 2026, local time (PDT).
- May 1
- sunrise 5:39 AM, sunset 8:13 PM
- May 31
- sunrise 5:02 AM, sunset 8:51 PM
Other months
Sources
Normals: NOAA NCEI U.S. Climate Normals, 1991-2020, station USW00094197 (Omak AP), public domain. Records: NOAA GHCN-Daily, station USW00094197, 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.