Weather Almanac: Manhattan, MT 59741

🗓️ Historical norms for September 2025

September avg. precipitation
🌧️ 1.11"
September days below freezing
📉 ≈3.5 days
Average September lows ≈38.5°F
USDA Zone
5a
Annual extreme lows -20°F to -15°F
Last Spring Frost (36°F)
🌷 Jun 13
First Fall Frost (36°F)
🍂 Sep 3
Mon. September 1 Labor Day  

🌅 6:47 a.m.

H: ≈78.6°F

L: ≈42.4°F

🌇 8:02 p.m.

Tue. September 2  

🌅 6:48 a.m.

H: ≈78.2°F

L: ≈42.1°F

🌇 8:00 p.m.

Wed. September 3  

🌅 6:49 a.m.

H: ≈77.8°F

L: ≈41.8°F

🌇 7:58 p.m.

Thu. September 4  

🌅 6:50 a.m.

H: ≈77.3°F

L: ≈41.5°F

🌇 7:57 p.m.

Fri. September 5  

🌅 6:51 a.m.

H: ≈76.9°F

L: ≈41.2°F

🌇 7:55 p.m.

Sat. September 6  

🌅 6:53 a.m.

H: ≈76.4°F

L: ≈40.9°F

🌇 7:53 p.m.

Sun. September 7 🌕

🌅 6:54 a.m.

H: ≈76.0°F

L: ≈40.6°F

🌇 7:51 p.m.

Mon. September 8  

🌅 6:55 a.m.

H: ≈75.5°F

L: ≈40.3°F

🌇 7:49 p.m.

Tue. September 9  

🌅 6:56 a.m.

H: ≈75.1°F

L: ≈40.0°F

🌇 7:47 p.m.

Wed. September 10  

🌅 6:58 a.m.

H: ≈74.6°F

L: ≈39.7°F

🌇 7:45 p.m.

Thu. September 11  

🌅 6:59 a.m.

H: ≈74.1°F

L: ≈39.5°F

🌇 7:43 p.m.

Fri. September 12  

🌅 7:00 a.m.

H: ≈73.6°F

L: ≈39.2°F

🌇 7:41 p.m.

Sat. September 13  

🌅 7:01 a.m.

H: ≈73.1°F

L: ≈39.0°F

🌇 7:39 p.m.

Sun. September 14 Holy Cross 🌗

🌅 7:03 a.m.

H: ≈72.7°F

L: ≈38.7°F

🌇 7:37 p.m.

Mon. September 15  

🌅 7:04 a.m.

H: ≈72.2°F

L: ≈38.5°F

🌇 7:35 p.m.

Tue. September 16  

🌅 7:05 a.m.

H: ≈71.7°F

L: ≈38.2°F

🌇 7:33 p.m.

Wed. September 17  

🌅 7:06 a.m.

H: ≈71.2°F

L: ≈38.0°F

🌇 7:31 p.m.

Thu. September 18  

🌅 7:07 a.m.

H: ≈70.7°F

L: ≈37.7°F

🌇 7:29 p.m.

Fri. September 19  

🌅 7:09 a.m.

H: ≈70.2°F

L: ≈37.5°F

🌇 7:28 p.m.

Sat. September 20  

🌅 7:10 a.m.

H: ≈69.7°F

L: ≈37.3°F

🌇 7:26 p.m.

Sun. September 21 🌑

🌅 7:11 a.m.

H: ≈69.2°F

L: ≈37.1°F

🌇 7:24 p.m.

Mon. September 22 Autumn Equinox  

🌅 7:12 a.m.

H: ≈68.8°F

L: ≈36.9°F

🌇 7:22 p.m.

Tue. September 23  

🌅 7:14 a.m.

H: ≈68.3°F

L: ≈36.6°F

🌇 7:20 p.m.

Wed. September 24  

🌅 7:15 a.m.

H: ≈67.8°F

L: ≈36.4°F

🌇 7:18 p.m.

Thu. September 25  

🌅 7:16 a.m.

H: ≈67.4°F

L: ≈36.2°F

🌇 7:16 p.m.

Fri. September 26  

🌅 7:17 a.m.

H: ≈66.9°F

L: ≈36.0°F

🌇 7:14 p.m.

Sat. September 27  

🌅 7:19 a.m.

H: ≈66.4°F

L: ≈35.8°F

🌇 7:12 p.m.

Sun. September 28  

🌅 7:20 a.m.

H: ≈66.0°F

L: ≈35.5°F

🌇 7:10 p.m.

Mon. September 29 🌓

🌅 7:21 a.m.

H: ≈65.5°F

L: ≈35.3°F

🌇 7:08 p.m.

Tue. September 30  

🌅 7:23 a.m.

H: ≈65.1°F

L: ≈35.1°F

🌇 7:06 p.m.


Temperature climatic data from weather station: LOGAN LANDFILL (USC00245123)

Precipitation climatic data from weather station: BOZEMAN GALLATIN FLD (USW00024132)

Agricultural climatic data from weather station: BOZEMAN GALLATIN FLD (USW00024132)