Glendale, OR

Climate overview — based on NOAA 1991-2020 normals from SEXTON SUMMIT, OR US.

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

Year-round temperatures (°F)

30° 40° 50° 60° 70° 80° J F M A M J J A S O N D
Avg high Avg low

Climate summary

Glendale has an annual average temperature of 48.9°F with about 40.7 inches of precipitation per year. The warmest month is July (average high 76.7°F), and the coldest is December (average low 32.3°F). December is typically the wettest month (8.14 in) and August the driest (0.28 in).

Pleasant months
3 / 12
avg high 65–80°F, low ≥ 50°F
Annual swing
28.5°F
warmest to coldest month
Heating need
5,799
Cooling need
9

Best time to visit Glendale

Full guide →

Climate change signal

All-time records →

65 of 366 (17.8%) of Glendale'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.

1940s
10
1950s
47
1960s
42
1970s
45
1980s
69
1990s
33
2000s
49
2010s
33
2020s
38

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 43.1°F 33.3°F 38.2°F 6.44 in 15
February 43.7°F 32.7°F 38.2°F 5.19 in 15
March 46.3°F 33.1°F 39.7°F 4.89 in 17
April 51.8°F 35.1°F 43.4°F 3.00 in 14
May 61.0°F 41.1°F 51.0°F 2.19 in 10
June 67.7°F 45.6°F 56.7°F 0.94 in 6
July 76.7°F 53.1°F 64.9°F 0.29 in 2
August 76.7°F 53.9°F 65.3°F 0.28 in 2
September 70.4°F 50.7°F 60.5°F 0.84 in 4
October 58.3°F 43.4°F 50.8°F 2.88 in 9
November 46.7°F 36.3°F 41.5°F 5.58 in 16
December 41.3°F 32.3°F 36.8°F 8.14 in 17

Climate twins of Glendale

Why these? →

The most climatically similar US cities at least 140 miles away (by monthly temperature + precipitation pattern).

Frost dates
Last spring / first fall frost
All-time records
Hottest, coldest, wettest
Planting calendar
What to plant, and when

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