What is the hottest month in Blaine?

July is the warmest month in Blaine, with an average high of 72.8°F.

What is the coldest month in Blaine?

January is the coldest month in Blaine, with an average low of 33.9°F.

What month does Blaine get the most rain?

January is typically the wettest month in Blaine, with about 6.17 inches of precipitation.

What plant hardiness zone is Blaine in?

Blaine is approximately in USDA plant hardiness Zone 8b, based on the average annual extreme minimum temperature.

Has the climate in Blaine changed recently?

12% of Blaine's all-time daily heat records were set in the last decade (since 2015), compared to roughly 5% if records were evenly distributed over time.

Blaine, WA

Climate overview — based on NOAA 1991-2020 normals from BLAINE, WA US.

Csb Warm-summer Mediterranean climate 8b USDA hardiness Zone 8b

Year-round temperatures (°F)

Avg high Avg low

Climate summary

Blaine has an annual average temperature of 50.9°F with about 41.8 inches of precipitation per year and 9.3 inches of snow. The warmest month is July (average high 72.8°F), and the coldest is January (average low 33.9°F). January is typically the wettest month (6.17 in) and August the driest (1.13 in). Snow typically falls from November through March.

Pleasant months

4 / 12

avg high 65–80°F, low ≥ 50°F

Annual swing

24.8°F

warmest to coldest month

Heating need

5,064

HDD/yr

Cooling need

CDD/yr

Best time to visit Blaine

Full guide →

Climate change signal

All-time records →

44 of 366 (12%) of Blaine's all-time daily heat records have been set since 2015. If records were spread evenly across the station's history, only about 5% would fall in any given decade.

1890s		9
1900s		13
1910s		20
1920s		44
1930s		51
1940s		52
1950s		26
1960s		41
1970s		20
1980s		21
1990s		7
2000s		10
2010s		37
2020s		15

Bars: number of all-time daily heat records still standing that were set in each decade.

Monthly averages

Month	Avg High	Avg Low	Avg Temp	Precipitation	Snow	Rainy days
January	44.7°F	33.9°F	39.3°F	6.17 in	3.7 in	19
February	47.7°F	34.6°F	41.1°F	3.37 in	0.8 in	15
March	52.1°F	37.7°F	44.9°F	4.21 in	1.0 in	18
April	57.6°F	41.9°F	49.8°F	2.97 in	—	15
May	64.0°F	47.3°F	55.7°F	2.57 in	—	11
June	68.5°F	52.1°F	60.3°F	1.93 in	—	10
July	72.8°F	55.1°F	64.0°F	1.14 in	—	6
August	72.7°F	54.9°F	63.8°F	1.13 in	—	6
September	66.9°F	50.4°F	58.6°F	2.22 in	—	9
October	57.4°F	44.0°F	50.7°F	4.39 in	0.1 in	16
November	49.6°F	37.9°F	43.8°F	6.08 in	0.4 in	19
December	44.2°F	34.1°F	39.2°F	5.63 in	3.3 in	19