Weather Almanac: Monarch, MT 59463

🗓️ Historical norms for September 2025

September avg. precipitation
🌧️ 2.00"
September days below freezing
📉 ≈4.9 days
Average September lows ≈38.5°F
USDA Zone
4b
Annual extreme lows -25°F to -20°F
Last Spring Frost (36°F)
🌷 Always
First Fall Frost (36°F)
🍂 Always
Mon. September 1 Labor Day  

🌅 6:43 a.m.

H: ≈77.2°F

L: ≈43.6°F

🌇 8:02 p.m.

Tue. September 2  

🌅 6:44 a.m.

H: ≈76.7°F

L: ≈43.4°F

🌇 8:00 p.m.

Wed. September 3  

🌅 6:46 a.m.

H: ≈76.3°F

L: ≈43.1°F

🌇 7:58 p.m.

Thu. September 4  

🌅 6:47 a.m.

H: ≈75.8°F

L: ≈42.8°F

🌇 7:56 p.m.

Fri. September 5  

🌅 6:48 a.m.

H: ≈75.3°F

L: ≈42.4°F

🌇 7:54 p.m.

Sat. September 6  

🌅 6:49 a.m.

H: ≈74.8°F

L: ≈42.1°F

🌇 7:52 p.m.

Sun. September 7 🌕

🌅 6:51 a.m.

H: ≈74.3°F

L: ≈41.8°F

🌇 7:50 p.m.

Mon. September 8  

🌅 6:52 a.m.

H: ≈73.8°F

L: ≈41.4°F

🌇 7:48 p.m.

Tue. September 9  

🌅 6:53 a.m.

H: ≈73.2°F

L: ≈41.1°F

🌇 7:46 p.m.

Wed. September 10  

🌅 6:55 a.m.

H: ≈72.7°F

L: ≈40.7°F

🌇 7:44 p.m.

Thu. September 11  

🌅 6:56 a.m.

H: ≈72.1°F

L: ≈40.3°F

🌇 7:42 p.m.

Fri. September 12  

🌅 6:57 a.m.

H: ≈71.5°F

L: ≈39.9°F

🌇 7:40 p.m.

Sat. September 13  

🌅 6:59 a.m.

H: ≈71.0°F

L: ≈39.5°F

🌇 7:38 p.m.

Sun. September 14 Holy Cross 🌗

🌅 7:00 a.m.

H: ≈70.4°F

L: ≈39.2°F

🌇 7:36 p.m.

Mon. September 15  

🌅 7:01 a.m.

H: ≈69.8°F

L: ≈38.8°F

🌇 7:34 p.m.

Tue. September 16  

🌅 7:02 a.m.

H: ≈69.2°F

L: ≈38.4°F

🌇 7:32 p.m.

Wed. September 17  

🌅 7:04 a.m.

H: ≈68.7°F

L: ≈38.0°F

🌇 7:30 p.m.

Thu. September 18  

🌅 7:05 a.m.

H: ≈68.1°F

L: ≈37.5°F

🌇 7:28 p.m.

Fri. September 19  

🌅 7:06 a.m.

H: ≈67.5°F

L: ≈37.1°F

🌇 7:26 p.m.

Sat. September 20  

🌅 7:08 a.m.

H: ≈67.0°F

L: ≈36.8°F

🌇 7:24 p.m.

Sun. September 21 🌑

🌅 7:09 a.m.

H: ≈66.5°F

L: ≈36.4°F

🌇 7:22 p.m.

Mon. September 22 Autumn Equinox  

🌅 7:10 a.m.

H: ≈65.9°F

L: ≈36.0°F

🌇 7:20 p.m.

Tue. September 23  

🌅 7:12 a.m.

H: ≈65.4°F

L: ≈35.6°F

🌇 7:18 p.m.

Wed. September 24  

🌅 7:13 a.m.

H: ≈64.9°F

L: ≈35.2°F

🌇 7:16 p.m.

Thu. September 25  

🌅 7:14 a.m.

H: ≈64.4°F

L: ≈34.8°F

🌇 7:14 p.m.

Fri. September 26  

🌅 7:16 a.m.

H: ≈64.0°F

L: ≈34.5°F

🌇 7:12 p.m.

Sat. September 27  

🌅 7:17 a.m.

H: ≈63.5°F

L: ≈34.1°F

🌇 7:10 p.m.

Sun. September 28  

🌅 7:18 a.m.

H: ≈63.1°F

L: ≈33.8°F

🌇 7:08 p.m.

Mon. September 29 🌓

🌅 7:20 a.m.

H: ≈62.7°F

L: ≈33.5°F

🌇 7:06 p.m.

Tue. September 30  

🌅 7:21 a.m.

H: ≈62.3°F

L: ≈33.2°F

🌇 7:04 p.m.


Temperature climatic data from weather station: NEIHART 7 NW (USC00246007)

Precipitation climatic data from weather station: NEIHART 8 NNW (USC00246008)

Agricultural climatic data from weather station: NEIHART 8 NNW (USC00246008)