Weather Almanac: Riverside, OR 97917

🗓️ Historical norms for May 2026

May avg. precipitation
🌧️ 1.32"
May days below freezing
📉 ≈8.5 days
Average May lows 35°F – 39°F
USDA Zone
6a
Annual extreme lows -10°F to -5°F
Last Spring Frost (36°F)
🌷 Always
First Fall Frost (36°F)
🍂 Always
Fri. May 1 🌕

🌅 6:44 a.m.

H: 59°F – 78°F

L: 25°F – 41°F

🌇 8:54 p.m.

Sat. May 2  

🌅 6:43 a.m.

H: 59°F – 78°F

L: 25°F – 41°F

🌇 8:56 p.m.

Sun. May 3  

🌅 6:42 a.m.

H: 59°F – 79°F

L: 25°F – 42°F

🌇 8:57 p.m.

Mon. May 4  

🌅 6:40 a.m.

H: 59°F – 79°F

L: 26°F – 42°F

🌇 8:58 p.m.

Tue. May 5  

🌅 6:39 a.m.

H: 60°F – 79°F

L: 26°F – 42°F

🌇 8:59 p.m.

Wed. May 6  

🌅 6:38 a.m.

H: 60°F – 80°F

L: 26°F – 42°F

🌇 9:00 p.m.

Thu. May 7  

🌅 6:36 a.m.

H: 60°F – 80°F

L: 27°F – 43°F

🌇 9:01 p.m.

Fri. May 8  

🌅 6:35 a.m.

H: 61°F – 80°F

L: 27°F – 43°F

🌇 9:02 p.m.

Sat. May 9 🌗

🌅 6:34 a.m.

H: 61°F – 80°F

L: 27°F – 43°F

🌇 9:04 p.m.

Sun. May 10  

🌅 6:33 a.m.

H: 61°F – 81°F

L: 28°F – 43°F

🌇 9:05 p.m.

Mon. May 11  

🌅 6:31 a.m.

H: 61°F – 81°F

L: 28°F – 44°F

🌇 9:06 p.m.

Tue. May 12  

🌅 6:30 a.m.

H: 62°F – 81°F

L: 28°F – 44°F

🌇 9:07 p.m.

Wed. May 13  

🌅 6:29 a.m.

H: 62°F – 82°F

L: 29°F – 44°F

🌇 9:08 p.m.

Thu. May 14 Ascension  

🌅 6:28 a.m.

H: 62°F – 82°F

L: 29°F – 44°F

🌇 9:09 p.m.

Fri. May 15  

🌅 6:27 a.m.

H: 63°F – 82°F

L: 29°F – 45°F

🌇 9:10 p.m.

Sat. May 16 🌑

🌅 6:26 a.m.

H: 63°F – 83°F

L: 29°F – 45°F

🌇 9:11 p.m.

Sun. May 17  

🌅 6:25 a.m.

H: 63°F – 83°F

L: 30°F – 45°F

🌇 9:12 p.m.

Mon. May 18  

🌅 6:24 a.m.

H: 63°F – 83°F

L: 30°F – 45°F

🌇 9:13 p.m.

Tue. May 19  

🌅 6:23 a.m.

H: 64°F – 83°F

L: 30°F – 45°F

🌇 9:14 p.m.

Wed. May 20  

🌅 6:22 a.m.

H: 64°F – 84°F

L: 31°F – 46°F

🌇 9:15 p.m.

Thu. May 21  

🌅 6:21 a.m.

H: 64°F – 84°F

L: 31°F – 46°F

🌇 9:16 p.m.

Fri. May 22  

🌅 6:20 a.m.

H: 64°F – 84°F

L: 31°F – 46°F

🌇 9:17 p.m.

Sat. May 23 🌓

🌅 6:20 a.m.

H: 65°F – 84°F

L: 31°F – 46°F

🌇 9:18 p.m.

Sun. May 24 Pentecost  

🌅 6:19 a.m.

H: 65°F – 85°F

L: 32°F – 47°F

🌇 9:19 p.m.

Mon. May 25 Memorial Day  

🌅 6:18 a.m.

H: 65°F – 85°F

L: 32°F – 47°F

🌇 9:20 p.m.

Tue. May 26  

🌅 6:17 a.m.

H: 66°F – 85°F

L: 32°F – 47°F

🌇 9:21 p.m.

Wed. May 27  

🌅 6:17 a.m.

H: 66°F – 85°F

L: 32°F – 47°F

🌇 9:22 p.m.

Thu. May 28  

🌅 6:16 a.m.

H: 66°F – 85°F

L: 33°F – 47°F

🌇 9:23 p.m.

Fri. May 29  

🌅 6:15 a.m.

H: 66°F – 86°F

L: 33°F – 47°F

🌇 9:24 p.m.

Sat. May 30  

🌅 6:15 a.m.

H: 67°F – 86°F

L: 33°F – 48°F

🌇 9:25 p.m.

Sun. May 31 🌕

🌅 6:14 a.m.

H: 67°F – 86°F

L: 33°F – 48°F

🌇 9:26 p.m.


Temperature climatic data from weather station: RIVERSIDE 7 SSW (USC00357208)

Precipitation climatic data from weather station: RIVERSIDE 7 SSW (USC00357208)

Agricultural climatic data from weather station: RIVERSIDE 7 SSW (USC00357208)