Weather Almanac: Boyes, MT 59316

🗓️ Historical norms for September 2025

September avg. precipitation
🌧️ 1.31"
September days below freezing
📉 ≈2.3 days
Average September lows ≈43.2°F
USDA Zone
4b
Annual extreme lows -25°F to -20°F
Last Spring Frost (36°F)
🌷 Jun 3
First Fall Frost (36°F)
🍂 Sep 9
Mon. September 1 Labor Day  

🌅 6:22 a.m.

H: ≈81.2°F

L: ≈49.3°F

🌇 7:36 p.m.

Tue. September 2  

🌅 6:23 a.m.

H: ≈80.8°F

L: ≈48.8°F

🌇 7:35 p.m.

Wed. September 3  

🌅 6:24 a.m.

H: ≈80.3°F

L: ≈48.4°F

🌇 7:33 p.m.

Thu. September 4  

🌅 6:25 a.m.

H: ≈79.9°F

L: ≈48.0°F

🌇 7:31 p.m.

Fri. September 5  

🌅 6:27 a.m.

H: ≈79.4°F

L: ≈47.6°F

🌇 7:29 p.m.

Sat. September 6  

🌅 6:28 a.m.

H: ≈78.9°F

L: ≈47.2°F

🌇 7:27 p.m.

Sun. September 7 🌕

🌅 6:29 a.m.

H: ≈78.4°F

L: ≈46.7°F

🌇 7:25 p.m.

Mon. September 8  

🌅 6:30 a.m.

H: ≈77.9°F

L: ≈46.3°F

🌇 7:23 p.m.

Tue. September 9  

🌅 6:31 a.m.

H: ≈77.4°F

L: ≈45.9°F

🌇 7:21 p.m.

Wed. September 10  

🌅 6:33 a.m.

H: ≈76.9°F

L: ≈45.5°F

🌇 7:19 p.m.

Thu. September 11  

🌅 6:34 a.m.

H: ≈76.4°F

L: ≈45.0°F

🌇 7:18 p.m.

Fri. September 12  

🌅 6:35 a.m.

H: ≈75.9°F

L: ≈44.6°F

🌇 7:16 p.m.

Sat. September 13  

🌅 6:36 a.m.

H: ≈75.4°F

L: ≈44.2°F

🌇 7:14 p.m.

Sun. September 14 Holy Cross 🌗

🌅 6:37 a.m.

H: ≈74.9°F

L: ≈43.8°F

🌇 7:12 p.m.

Mon. September 15  

🌅 6:39 a.m.

H: ≈74.3°F

L: ≈43.3°F

🌇 7:10 p.m.

Tue. September 16  

🌅 6:40 a.m.

H: ≈73.8°F

L: ≈42.9°F

🌇 7:08 p.m.

Wed. September 17  

🌅 6:41 a.m.

H: ≈73.3°F

L: ≈42.5°F

🌇 7:06 p.m.

Thu. September 18  

🌅 6:42 a.m.

H: ≈72.8°F

L: ≈42.1°F

🌇 7:04 p.m.

Fri. September 19  

🌅 6:44 a.m.

H: ≈72.3°F

L: ≈41.7°F

🌇 7:02 p.m.

Sat. September 20  

🌅 6:45 a.m.

H: ≈71.8°F

L: ≈41.3°F

🌇 7:00 p.m.

Sun. September 21 🌑

🌅 6:46 a.m.

H: ≈71.3°F

L: ≈40.9°F

🌇 6:58 p.m.

Mon. September 22 Autumn Equinox  

🌅 6:47 a.m.

H: ≈70.8°F

L: ≈40.4°F

🌇 6:56 p.m.

Tue. September 23  

🌅 6:48 a.m.

H: ≈70.3°F

L: ≈40.0°F

🌇 6:55 p.m.

Wed. September 24  

🌅 6:50 a.m.

H: ≈69.8°F

L: ≈39.7°F

🌇 6:53 p.m.

Thu. September 25  

🌅 6:51 a.m.

H: ≈69.3°F

L: ≈39.3°F

🌇 6:51 p.m.

Fri. September 26  

🌅 6:52 a.m.

H: ≈68.8°F

L: ≈38.9°F

🌇 6:49 p.m.

Sat. September 27  

🌅 6:53 a.m.

H: ≈68.4°F

L: ≈38.5°F

🌇 6:47 p.m.

Sun. September 28  

🌅 6:55 a.m.

H: ≈67.9°F

L: ≈38.1°F

🌇 6:45 p.m.

Mon. September 29 🌓

🌅 6:56 a.m.

H: ≈67.4°F

L: ≈37.7°F

🌇 6:43 p.m.

Tue. September 30  

🌅 6:57 a.m.

H: ≈67.0°F

L: ≈37.4°F

🌇 6:41 p.m.


Temperature climatic data from weather station: ROCKYPOINT 7NNE (USC00487885)

Precipitation climatic data from weather station: ROCKYPOINT 7NNE (USC00487885)

Agricultural climatic data from weather station: BROADUS (USC00241127)