Weather Almanac: Rollinsville, CO 80474

🗓️ Historical norms for May 2026

May avg. precipitation
🌧️ 3.02"
May days below freezing
📉 ≈21.3 days
Average May lows ≈29.1°F
USDA Zone
5b
Annual extreme lows -15°F to -10°F
Last Spring Frost (36°F)
🌷 Always
First Fall Frost (36°F)
🍂 Always
Fri. May 1 🌕

🌅 6:02 a.m.

H: ≈44.6°F

L: ≈25.5°F

🌇 7:56 p.m.

Sat. May 2  

🌅 6:01 a.m.

H: ≈44.9°F

L: ≈25.8°F

🌇 7:57 p.m.

Sun. May 3  

🌅 5:59 a.m.

H: ≈45.3°F

L: ≈26.0°F

🌇 7:58 p.m.

Mon. May 4  

🌅 5:58 a.m.

H: ≈45.6°F

L: ≈26.2°F

🌇 7:59 p.m.

Tue. May 5  

🌅 5:57 a.m.

H: ≈46.0°F

L: ≈26.4°F

🌇 8:00 p.m.

Wed. May 6  

🌅 5:56 a.m.

H: ≈46.3°F

L: ≈26.7°F

🌇 8:01 p.m.

Thu. May 7  

🌅 5:55 a.m.

H: ≈46.7°F

L: ≈26.9°F

🌇 8:02 p.m.

Fri. May 8  

🌅 5:54 a.m.

H: ≈47.0°F

L: ≈27.1°F

🌇 8:03 p.m.

Sat. May 9 🌗

🌅 5:53 a.m.

H: ≈47.4°F

L: ≈27.3°F

🌇 8:04 p.m.

Sun. May 10  

🌅 5:51 a.m.

H: ≈47.7°F

L: ≈27.6°F

🌇 8:05 p.m.

Mon. May 11  

🌅 5:50 a.m.

H: ≈48.1°F

L: ≈27.8°F

🌇 8:06 p.m.

Tue. May 12  

🌅 5:49 a.m.

H: ≈48.4°F

L: ≈28.0°F

🌇 8:07 p.m.

Wed. May 13  

🌅 5:48 a.m.

H: ≈48.8°F

L: ≈28.3°F

🌇 8:08 p.m.

Thu. May 14 Ascension  

🌅 5:48 a.m.

H: ≈49.2°F

L: ≈28.5°F

🌇 8:09 p.m.

Fri. May 15  

🌅 5:47 a.m.

H: ≈49.5°F

L: ≈28.8°F

🌇 8:10 p.m.

Sat. May 16 🌑

🌅 5:46 a.m.

H: ≈49.9°F

L: ≈29.0°F

🌇 8:11 p.m.

Sun. May 17  

🌅 5:45 a.m.

H: ≈50.2°F

L: ≈29.3°F

🌇 8:12 p.m.

Mon. May 18  

🌅 5:44 a.m.

H: ≈50.6°F

L: ≈29.5°F

🌇 8:13 p.m.

Tue. May 19  

🌅 5:43 a.m.

H: ≈51.0°F

L: ≈29.8°F

🌇 8:14 p.m.

Wed. May 20  

🌅 5:42 a.m.

H: ≈51.3°F

L: ≈30.0°F

🌇 8:15 p.m.

Thu. May 21  

🌅 5:42 a.m.

H: ≈51.7°F

L: ≈30.3°F

🌇 8:16 p.m.

Fri. May 22  

🌅 5:41 a.m.

H: ≈52.0°F

L: ≈30.5°F

🌇 8:17 p.m.

Sat. May 23 🌓

🌅 5:40 a.m.

H: ≈52.4°F

L: ≈30.8°F

🌇 8:17 p.m.

Sun. May 24 Pentecost  

🌅 5:39 a.m.

H: ≈52.8°F

L: ≈31.1°F

🌇 8:18 p.m.

Mon. May 25 Memorial Day  

🌅 5:39 a.m.

H: ≈53.1°F

L: ≈31.3°F

🌇 8:19 p.m.

Tue. May 26  

🌅 5:38 a.m.

H: ≈53.5°F

L: ≈31.6°F

🌇 8:20 p.m.

Wed. May 27  

🌅 5:38 a.m.

H: ≈53.9°F

L: ≈31.9°F

🌇 8:21 p.m.

Thu. May 28  

🌅 5:37 a.m.

H: ≈54.2°F

L: ≈32.1°F

🌇 8:21 p.m.

Fri. May 29  

🌅 5:37 a.m.

H: ≈54.6°F

L: ≈32.4°F

🌇 8:22 p.m.

Sat. May 30  

🌅 5:36 a.m.

H: ≈55.0°F

L: ≈32.7°F

🌇 8:23 p.m.

Sun. May 31 🌕

🌅 5:36 a.m.

H: ≈55.4°F

L: ≈33.0°F

🌇 8:24 p.m.


Temperature climatic data from weather station: BOULDER 14 W (USW00094075)

Precipitation climatic data from weather station: BOULDER 14 W (USW00094075)

Agricultural climatic data from weather station: FRASER (USC00053116)