Monthly Climate
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Best time to visit Spokane

September is the best time to visit Spokane for general sightseeing, with average highs of 25 °C and about 4 wet days. The comfortable season runs roughly May to June.

It depends what you are going for

One month rarely wins on everything. These are the best months on each measure taken on its own.

If you want Best month On that measure
Sightseeing and walking September comfort 95/100
The least cloud July 27 % average cloud cover
The least rain August 13 mm
Warmth July 31 °C
Cooler weather December 2.2 °C

Ranked by comfort

# Month Comfort / 100 Avg high Wet days
1 September 95 25 °C 4
2 June 94 25 °C 6
3 May 88 21 °C 8
4 August 81 30 °C 2
5 July 80 31 °C 3
6 October 73 16 °C 7
7 April 64 15 °C 10
8 March 41 10 °C 12
9 November 31 7.3 °C 12
10 February 28 5.5 °C 10
11 January 24 2.6 °C 12
12 December 24 2.2 °C 12

When to think twice

December scores lowest with about 12 wet days and highs near 2.2 °C. That does not make it a bad month — it depends entirely on what you are travelling for. The numbers are all here; the judgement is yours.

The full year

Month Avg high Rainfall Cloud
January 2.6 °C 67 mm 74 %
February 5.5 °C 48 mm 65 %
March 10.4 °C 61 mm 66 %
April 15.2 °C 50 mm 62 %
May 20.8 °C 46 mm 55 %
June 24.8 °C 35 mm 50 %
July 30.6 °C 13 mm 27 %
August 30.4 °C 13 mm 29 %
September 24.7 °C 19 mm 38 %
October 15.9 °C 45 mm 53 %
November 7.3 °C 71 mm 70 %
December 2.2 °C 77 mm 74 %

Data sources and method

Normal period
1991–2020
Dataset version
era5-1991-2020-scores1.1
Last processed

Measured values come from ERA5 reanalysis and are reproduced unchanged. Calculated by us: comfort score, beach score, season boundaries. Full formulas are on the methodology page.

Contains modified Copernicus Climate Change Service information 2026. Neither the European Commission nor ECMWF is responsible for any use that may be made of the Copernicus information or data it contains.