Aurora, OR

Climate overview — based on NOAA 1991-2020 normals from AURORA STATE AP, OR US.

Csb Warm-summer Mediterranean climate 9a USDA hardiness Zone 9a

Year-round temperatures (°F)

30° 50° 70° 90° J F M A M J J A S O N D
Avg high Avg low

Climate summary

Aurora has an annual average temperature of 54.8°F with about 39.6 inches of precipitation per year. The warmest month is August (average high 83.3°F), and the coldest is December (average low 35.9°F). December is typically the wettest month (6.23 in) and July the driest (0.43 in).

Pleasant months
2 / 12
avg high 65–80°F, low ≥ 50°F
Annual swing
28°F
warmest to coldest month
Heating need
3,960
Cooling need
282

Best time to visit Aurora

Full guide →

Climate change signal

All-time records →

184 of 366 (50.3%) of Aurora'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.

1990s
28
2000s
114
2010s
124
2020s
100

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 48.5°F 36.3°F 42.4°F 5.48 in 20
February 52.5°F 37.0°F 44.7°F 4.03 in 17
March 57.1°F 39.4°F 48.3°F 4.39 in 19
April 62.0°F 42.6°F 52.3°F 3.37 in 17
May 69.2°F 48.3°F 58.7°F 2.55 in 13
June 74.5°F 52.3°F 63.4°F 1.47 in 9
July 83.1°F 56.1°F 69.6°F 0.43 in 3
August 83.3°F 56.3°F 69.8°F 0.52 in 4
September 77.4°F 52.2°F 64.8°F 1.58 in 8
October 64.3°F 45.5°F 54.9°F 3.70 in 15
November 53.7°F 39.7°F 46.7°F 5.80 in 20
December 47.6°F 35.9°F 41.8°F 6.23 in 20

Climate twins of Aurora

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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