Spokane, WA weather in May
Spokane is mild in May, with some rain: highs average 67°F and nights drop to about 45°F. Rain falls on about 10 days. A great month for outdoor plans.
- Normal high
- 67°F
- Normal low
- 45°F
- Wet days
- 10
- 1.6 in total
- Muggy days
- 0
- dew point 65°F+
How May changes from start to finish
| May 1 | May 31 | |
|---|---|---|
| Normal high | 62°F | 71°F |
| Normal low | 41°F | 49°F |
| Chance of a wet day | 31% | 31% |
| Sunrise / sunset | 5:32 am / 8:01 pm | 4:56 am / 8:38 pm |
| Daylight | 14.5 h | 15.7 h |
Chance of a wet day: average for the first and last 7 days of the month. Times are local clock time (Pacific Time).
A typical May day
- 6 am49°Fdew point 41°F
- 9 am58°Fdew point 41°F
- Noon65°Fdew point 40°F
- 3 pm67°Fdew point 38°F
- 6 pm65°Fdew point 39°F
- 9 pm55°Fdew point 41°F
NOAA hourly normals (local standard time) from Spokane Felts Fld (5 mi away); average wind 6 mph.
What kind of days to expect
- Comfortable dayshigh 65-80°F and dew point under 60°F15 of 31
- Hot dayshigh 90°F or more0 of 31
- Muggy daysdaily mean dew point 65°F or more0 of 31
- Wet daysat least 0.01 in of rain or melted snow10 of 31
- Notable rainat least 0.10 in4 of 31
- Freezing nightslow 32°F or below2 of 31
- Snow on the groundsnow depth 1 in or more0 of 31
Average days per May, counted from daily records for each year 1991-2020.
Rain and snow in May
Normal precipitation is 1.6 in; a dry May brings about 0.9 in and a wet one about 1.8 in (25th and 75th percentiles). About 1 day brings half an inch or more. Normal snowfall is 0.1 in.
How May varies from year to year
- Warmest May, 1991-20201992: average high 74°F
- Coolest May1996: average high 60°F
- Wettest May2004: 3.7 in
- Driest May1992: 0.3 in
- Highest reading92°F (May 17, 2006)
- Lowest reading24°F (May 8, 2002)
From the station's daily records with NOAA quality flags removed; most recent date shown when a reading repeats.
May compared with April and June
| April | May | June | |
|---|---|---|---|
| Normal high | 57°F | 67°F | 74°F |
| Normal low | 37°F | 45°F | 51°F |
| Wet days | 10 | 10 | 8 |
| Comfortable days | 5 | 15 | 18 |
| Daylight | 13.7 h | 15.2 h | 15.9 h |
Highs change by +10°F from April and +7°F into June.
How Spokane ranks in May
- Normal high315th warmest of 378 cities; 3rd of 9 in Washington
- Wet days190th driest of 378
- Comfortable days88th most of 339
What to pack for Spokane in May
- A rain jacket or umbrella – rain on about 10 days
Heating and cooling
May has 294 heating degree days and 15 cooling degree days (base 65°F), 4% of the year's total heating and cooling demand.
Questions
How cold is Spokane in May?
The normal high is 67°F and the normal low is 45°F. From 1991 to 2020 the coldest May reading was 24°F (May 8, 2002).
Does it rain a lot in Spokane in May?
About 10 days in May have at least 0.01 in of precipitation, and the normal total is 1.6 in. The wettest May in 1991-2020 was in 2004 (3.7 in); the driest was in 1992 (0.3 in).
Does it snow in Spokane in May?
Yes. Normal snowfall in May is 0.1 in.
Is May a good time to visit Spokane?
May ranks 2nd of 12 months on our comfort score for Spokane (76 out of 100). It has about 15 comfortable days. The best month is June.
Where the numbers come from
- Temperature, rain, snowfall and snow depth: Spokane Intl Airport (USW00024157), 5.4 mi WSW of the city center, 2,353 ft (483 ft higher than the city). NOAA normals and daily records, 1991-2020.
- Frost dates and humidity and wind by hour: Spokane Felts Fld (USW00094176), 5.2 mi ENE of the city center, 1,953 ft (83 ft higher than the city). NOAA normals and daily records, 1991-2020.
- Daily humidity and wind: Spokane International Airport (727850-24157), 5.4 mi WSW of the city center, 2,355 ft (485 ft higher than the city). Hourly observations, 1991-2020.
- Not available for this location: cloud cover (no station close enough or similar enough in elevation).