Menomonie weather in September

In September, Menomonie sees average daytime highs of 70°F and overnight lows near 51°F, with 3.4 in of rain across 9.6 wet days and about 12.3 hours of daylight. It is the 4th-warmest and 5th-wettest month of the year here.

Highs ease over the month, from about 75°F in the first days to 64°F by the end. The sky is clear or mostly clear about 36% of the time in September, and the air most often feels dry.

Daylight stretches from about 13 h 06 min at the start of September to 11 h 36 min by month's end. Set against the rest of the year, September is Menomonie's 2nd-clearest and 8th-windiest month. For the whole year in context, see Menomonie's year-round climate.

Daytime high
70°
4th warmest
Overnight low
51°
9th coldest
Rainfall
3.4 in
9.6 wet days
Daylight
12 h 18 min
5:53 AM – 6:11 PM
Cloud cover
54%
2nd clearest
Wind
8 mph
8th windiest
Solar energy
4.13 kWh/m²
Travel score
6.6
out of 10

Menomonie is city in and the county seat of Dunn County in the U.S. state of Wisconsin.

Density
407/km²
people per km²
Founded
1788

Air quality: WHO Ambient Air Quality Database. Density & description: Wikidata (CC0), GeoNames.

Temperature in September

Average highAverage lowShaded bands: 10–90% of days

Highs ease over the month, from about 75°F in the first days to 64°F by the end.

A typical September day in Menomonie reaches about 70°F in the afternoon and slips back to 51°F overnight — a 19°F spread between the day's warmth and the night's chill. On most days the high lands between 59°F and 81°F. Set against its neighbours, September runs about 8°F cooler than August and about 14°F warmer than October.

40°60°80°151015202530
Avg high (°F)Avg low (°F)
17556
27556
37556
47455
57455
67455
77354
87354
97353
107253
117253
127252
137152
147152
157051
167051
176951
186950
196950
206849
216849
226748
236748
246647
256647
266547
276546
286446
296445
306445

How September really feels in Menomonie

Once humidity and wind are folded in, September averages 0 days that feel above 90°F and 0 that feel at or below 32°F — the comfort signal a plain temperature reading hides.

Days feeling ≥ 90°F
0
heat index over the day's high
Days feeling ≤ 32°F
0
wind chill below the day's low

September sits comfortably in between — no days that feel dangerously hot or drop to a hard freeze once humidity and wind are folded in.

Menomonie weather by month

How September compares with the rest of the year at a glance. September is the 4th-warmest and 5th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°F)Rainfall (inches)Wet daysSnow daysDaylight (hours)Travel score
Jan23° / 1.16.76.990.0
Feb28° / 11°1.15.35.110.10.0
Mar40° / 23°2.18.14.511.60.4
Apr55° / 36°3.311.52.813.23.3
May67° / 47°4.412.70.114.65.7
Jun76° / 58°4.512.5015.36.3
Jul80° / 62°3.5110156.5
Aug78° / 59°4.010.7013.96.8
Sep70° / 51°3.49.6012.36.6
Oct56° / 39°2.990.710.73.8
Nov40° / 26°2.073.99.40.4
Dec27° / 13°1.56.56.38.70.0

Cloud cover in September

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 36% of the time in September.

Beyond those clear spells, partly cloudy skies cover about 18% of September, with mostly cloudy or overcast conditions the remaining 46%.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
15941
25941
35941
45941
55941
65941
75842
85743
95743
105644
115545
125545
135545
145446
155347
165347
175248
185248
195248
205248
215248
225149
235149
245149
255149
265149
275149
285149
295149
305050

Chance of precipitation in September

Any precipitation

Menomonie gets around 3.4 in of rain over 9.6 wet days in September. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable rain averages around 32% and peaks near 33% on the wettest days.

0%10%20%30%40%151015202530
Rain chance (%)
132
232
331
431
531
630
730
830
930
1030
1130
1231
1331
1431
1531
1631
1732
1832
1932
2033
2133
2233
2333
2433
2533
2633
2733
2833
2933
3033

Humidity in September

DryComfortableHumidMuggyOppressiveMiserable

Most of September feels dry — the stacked bands show each day's mix of comfort levels, read off the dew point.

By dew point, September lands in the dry band about 64% of days. Sticky, muggy-or-worse air turns up on roughly 6% of them.

0%25%50%75%100%151015202530
Dry (%)Comfortable (%)Humid (%)Muggy (%)Oppressive (%)
1422420122
2442319122
3462318111
4482317101
5502317101
652221691
753221681
854211681
956211571
1056211571
1158211461
1260201460
1361201360
1462201350
1563201250
1665191240
1766191140
1866191140
1968181040
207018930
217217830
227416730
237416730
247715620
257914520
268013520
278212420
288411320
298510320
30869320

Wind in September

Winds average 8 mph in September.

Across September, daily wind ranges from about 7 mph on the calmest days to 8 mph at its breeziest. It stays fairly steady from day to day.

051015151015202530
Wind speed (mph)Feels
17calm
27calm
37calm
47calm
57calm
67calm
77calm
87calm
97calm
107calm
117calm
127light breeze
137light breeze
148light breeze
158light breeze
168light breeze
178light breeze
188light breeze
198light breeze
208light breeze
218light breeze
228light breeze
238light breeze
248light breeze
258light breeze
268light breeze
278light breeze
288light breeze
298light breeze
308light breeze

Sunrise & sunset in September

DaylightNight

Daylight runs from about 13 h 06 min at the start of September to 11 h 36 min by month's end. The lit band spans sunrise to sunset each day.

Days shrink by about 90 minutes over September. Sunrise moves from 5:34 AM to 6:10 AM, and sunset from 6:40 PM to 5:44 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
113.15:346:40
213.05:366:38
313.05:376:37
412.95:386:35
512.95:396:33
612.85:416:31
712.85:426:29
812.75:436:27
912.75:446:25
1012.65:456:23
1112.65:476:21
1212.55:486:19
1312.55:496:17
1412.45:506:15
1512.45:526:13
1612.35:536:11
1712.35:546:09
1812.25:556:07
1912.15:566:05
2012.15:586:03
2112.05:596:01
2212.06:005:59
2311.96:015:57
2411.96:035:55
2511.86:045:53
2611.86:055:52
2711.76:065:50
2811.76:085:48
2911.66:095:46
3011.66:105:44

Solar energy in September

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in September, about 4.13 kWh/m².

For context, solar energy here swings from a low near 1.4 kWh/m² to a high of 6.22 kWh/m² in July across the year — September's 4.13 kWh/m² falls in the middle.

024151015202530
Solar energy (kWh/m²)Level
14.8Bright
24.8Bright
34.7Bright
44.7Bright
54.7Bright
64.6Bright
74.5Bright
84.5Bright
94.4Bright
104.4Bright
114.3Bright
124.3Bright
134.2Bright
144.2Bright
154.1Bright
164.0Bright
174.0Bright
184.0Moderate
193.9Moderate
203.9Moderate
213.8Moderate
223.8Moderate
233.7Moderate
243.7Moderate
253.7Moderate
263.6Moderate
273.6Moderate
283.5Moderate
293.5Moderate
303.5Moderate
Planning a trip in September

Is September a good time to visit Menomonie?

Our two travel scores rate September for general sightseeing and for beach or pool weather — 0 (poor) to 10 (ideal).

6.6
Sightseeing
2nd-best month of the year
4.0
Beach & pool
4th-best month of the year

September is a reasonable time to visit Menomonie for sightseeing.

What to pack for Menomonie in September

From September's temperature range, rain chance, sun and wind — what's worth putting in the bag.

In September, Menomonie sees daytime highs around 70°F and nights near 51°F. Worth packing: rain gear. About 10 days see rain.

rain gear

UV index in Menomonie in September

LowModerateHighVery highExtreme

Clear-sky midday UV in September peaks around 6 — enough to warrant sun protection. The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Menomonie peaks around June 16 at about 9 (very high) — sunscreen, a hat and midday shade are essential. It bottoms out near January 12 at about 1 (low).

The index reaches 3 or more — the level where the WHO recommends sun protection — in 8 months of the year.

025710JanFebMarAprMayJunJulAugSepOctNovDecLowModerateHighVery highHighModerateLowJun 16UV 9Jan 12UV 1
UV index (midday)Level
Jan1Low
Feb2Low
Mar3Moderate
Apr5High
May7Very high
Jun9Very high
Jul7Very high
Aug7Very high
Sep6High
Oct3Moderate
Nov2Low
Dec1Low
Location & terrain

Where is Menomonie?

Menomonie sits at 44.9°N, 91.9°W, 889 ft above sea level, in United States. The nearest listed city is Eau Claire, 21 mi away.

Topography around Menomonie

How much the land rises and falls, and what covers it, within 2, 10 and 50 miles of Menomonie.

Within 2 miles, the terrain around Menomonie has only modest variations in elevation — a maximum elevation change of 374 ft around an average of 892 ft above sea level; within 10 miles, only modest variations in elevation — a maximum elevation change of 564 ft; within 50 miles, significant variations in elevation — a maximum elevation change of 1,099 ft.

The land around Menomonie is covered by trees (45%) and grassland (21%) within 2 miles, cropland (44%) and trees (38%) within 10 miles, and trees (47%) and cropland (38%) within 50 miles.

2 miles
374 ft
10 miles
564 ft
50 miles
1,099 ft
treesgrasslandcroplandartificial surfaceswater
September weather nearby: Eau Claire 21 mi · River Falls 35 mi · Red Wing 37 mi · Stillwater 45 mi · Hastings 47 mi · Cottage Grove 50 mi · Woodbury 51 mi · Oakdale 52 mi

United States travel facts

Power plugs
Type A / B
120 V · 60 Hz
Prices
≈ 100% of US
price level, 2025
GDP per capita
$90,027
2025
Happiness
6.8 / 10
World Happiness, 2025
Safe drinking water
98%
of population, 2024
Homicide rate
5.8
per 100k, 2023
Road deaths
12.7
per 100k/yr, 2019
Income group
High
World Bank
Religion
Protestant 47%unaffiliated 23%Roman Catholic 21%Jewish 2%

Sources: World Bank, US State Department, World Happiness Report, WHO/UNICEF, EF EPI, CIA World Factbook.

Data sources

Temperature, precipitation, cloud, humidity, wind and solar figures are a 1991–2020 climatology for Menomonie (44.8755°, -91.9193°, elevation 889 ft), computed from hourly ERA5 reanalysis — contains modified Copernicus Climate Change Service information. Sun figures are astronomical calculations, not observations. City data © GeoNames, CC BY 4.0. Map outlines from Natural Earth (public domain); interactive map © Google. UV index is derived from CAMS (Copernicus Atmosphere Monitoring Service) clear-sky UV data — contains modified Copernicus Atmosphere Monitoring Service information. Topography is sampled from the Copernicus DEM GLO-90 elevation model (© ESA/Airbus) and ESA WorldCover 2021 land cover (CC BY 4.0).