What is the hottest month in Milton-Freewater?

July is the warmest month in Milton-Freewater, with an average high of 90.4°F.

What is the coldest month in Milton-Freewater?

December is the coldest month in Milton-Freewater, with an average low of 30.1°F.

What month does Milton-Freewater get the most rain?

December is typically the wettest month in Milton-Freewater, with about 2.06 inches of precipitation.

What plant hardiness zone is Milton-Freewater in?

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

Has the climate in Milton-Freewater changed recently?

9.8% of Milton-Freewater'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.

Milton-Freewater, OR

Climate overview — based on NOAA 1991-2020 normals from MILTON FREEWATER, OR US.

BSk Semi-arid (cold) climate 8b USDA hardiness Zone 8b

Year-round temperatures (°F)

Avg high Avg low

Climate summary

Milton-Freewater has an annual average temperature of 55.5°F with about 16.2 inches of precipitation per year and 7.2 inches of snow. The warmest month is July (average high 90.4°F), and the coldest is December (average low 30.1°F). December is typically the wettest month (2.06 in) and July the driest (0.34 in). Snow typically falls from November through February.

Pleasant months

2 / 12

avg high 65–80°F, low ≥ 50°F

Annual swing

39.9°F

warmest to coldest month

Heating need

4,272

HDD/yr

Cooling need

837

CDD/yr

Best time to visit Milton-Freewater

Full guide →

Climate change signal

All-time records →

36 of 366 (9.8%) of Milton-Freewater'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.

1920s		8
1930s		57
1940s		40
1950s		26
1960s		53
1970s		44
1980s		29
1990s		34
2000s		29
2010s		17
2020s		29

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	44.2°F	30.3°F	37.2°F	1.75 in	2.4 in	10
February	48.6°F	32.8°F	40.7°F	1.52 in	1.3 in	9
March	57.5°F	38.7°F	48.1°F	1.70 in	0.1 in	10
April	64.7°F	43.7°F	54.2°F	1.62 in	—	9
May	73.6°F	50.4°F	62.0°F	1.77 in	—	8
June	80.5°F	56.0°F	68.3°F	1.25 in	—	6
July	90.4°F	63.1°F	76.7°F	0.34 in	—	2
August	89.3°F	62.3°F	75.8°F	0.39 in	—	2
September	79.6°F	54.6°F	67.1°F	0.61 in	—	3
October	65.8°F	44.3°F	55.0°F	1.22 in	—	6
November	51.7°F	35.6°F	43.6°F	1.92 in	0.3 in	10
December	43.5°F	30.1°F	36.8°F	2.06 in	3.1 in	10