Greenfield weather in October

In October, Greenfield sees average daytime highs of 58°F and overnight lows near 46°F, with 3.1 in of precipitation across 9.1 wet days and about 10.8 hours of daylight. It is the 6th-warmest and 6th-wettest month of the year here.

Highs ease over the month, from about 64°F in the first days to 52°F by the end. The sky is clear or mostly clear about 31% of the time in October, and the air most often feels dry.

Daylight stretches from about 11 h 30 min at the start of October to 10 h 06 min by month's end. Set against the rest of the year, October is Greenfield's 5th-clearest and 4th-windiest month. For the whole year in context, see Greenfield's year-round climate.

Daytime high
58°
6th warmest
Overnight low
46°
7th coldest
Precipitation
3.1 in
9.1 wet days
Daylight
10 h 48 min
6:13 AM – 5:01 PM
Cloud cover
61%
5th clearest
Wind
11 mph
4th windiest
Solar energy
2.93 kWh/m²
Travel score
4.4
out of 10

Greenfield is city in Milwaukee County, Wisconsin, United States.

Density
1,252/km²
people per km²

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

Temperature in October

Average highAverage lowShaded bands: 10–90% of days

Highs ease over the month, from about 64°F in the first days to 52°F by the end.

A typical October day in Greenfield reaches about 58°F in the afternoon and slips back to 46°F overnight — a 12°F spread between the day's warmth and the night's chill. On most days the high lands between 48°F and 69°F. Set against its neighbours, October runs about 12°F cooler than September and about 14°F warmer than November.

20°40°60°80°151015202531
Avg high (°F)Avg low (°F)
16451
26451
36451
46350
56350
66349
76249
86249
96148
106148
116048
126047
136047
145947
155946
165846
175846
185745
195745
205644
215644
225544
235543
245543
255443
265342
275342
285341
295241
305241
315140

How October really feels in Greenfield

Once humidity and wind are folded in, October 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

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

Greenfield weather by month

How October compares with the rest of the year at a glance. October is the 6th-warmest and 6th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°F)Rainfall (inches)Wet daysSnow daysDaylight (hours)Travel score
Jan29° / 17°2.08.96.89.20.0
Feb31° / 19°1.975.510.20.0
Mar40° / 28°2.49.54.111.60.2
Apr50° / 38°4.111.91.713.12.2
May62° / 48°3.611.6014.44.9
Jun73° / 60°3.510.8015.16.6
Jul79° / 66°3.210.1014.86.7
Aug77° / 65°3.610.7013.86.8
Sep71° / 58°3.09.2012.36.7
Oct58° / 46°3.19.10.210.84.4
Nov45° / 34°2.48.61.79.51.0
Dec34° / 24°2.28.55.48.90.0

Cloud cover in October

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 31% of the time in October.

Beyond those clear spells, partly cloudy skies cover about 14% of October, with mostly cloudy or overcast conditions the remaining 55%. Skies tend to cloud over as the month goes on.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
15149
25149
35149
45149
55149
65050
75050
84951
94951
104852
114852
124852
134753
144654
154654
164555
174357
184258
194258
204159
214159
224060
234060
243961
253961
263961
273961
283961
293862
303961
313961

Chance of precipitation in October

Any precipitationSnow

Greenfield gets around 3.1 in of rain and snow over 9.1 wet days in October. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable precipitation averages around 29% and peaks near 31% on the wettest days, and about 0 day brings snow.

0%10%20%30%40%151015202531
Rain chance (%)Snow chance (%)
1300
2290
3290
4290
5280
6280
7280
8280
9280
10290
11290
12290
13290
14290
15300
16300
17310
18310
19310
20310
21310
22301
23301
24301
25291
26291
27291
28291
29281
30281
31272

Humidity in October

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, October lands in the dry band about 91% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)Muggy (%)
1781273
2811162
3811162
4831052
5831052
684952
785942
886941
987841
1088831
1188831
1289731
1390721
1492620
1592620
1692620
1793610
1894510
1994510
2094510
2195410
2295410
2395410
2495410
2596310
2696310
2796310
2897300
2997300
3097300
3198200

Wind in October

Winds average 11 mph in October.

Across October, daily wind ranges from about 10 mph on the calmest days to 11 mph at its breeziest. It stays fairly steady from day to day.

051015151015202531
Wind speed (mph)Feels
110light breeze
210light breeze
310light breeze
410light breeze
510light breeze
610light breeze
711light breeze
811light breeze
911light breeze
1011light breeze
1111light breeze
1211light breeze
1311light breeze
1411light breeze
1511light breeze
1611light breeze
1711light breeze
1811light breeze
1911light breeze
2011light breeze
2111light breeze
2211light breeze
2311light breeze
2411light breeze
2511light breeze
2611light breeze
2711light breeze
2811light breeze
2911light breeze
3011light breeze
3111light breeze

Sunrise & sunset in October

DaylightNight

Daylight runs from about 11 h 30 min at the start of October to 10 h 06 min by month's end. The lit band spans sunrise to sunset each day.

Days shrink by about 84 minutes over October. Sunrise moves from 5:55 AM to 6:32 AM, and sunset from 5:27 PM to 4:39 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
111.55:555:27
211.55:565:25
311.45:575:24
411.45:585:22
511.36:005:20
611.36:015:18
711.26:025:16
811.26:035:15
911.16:045:13
1011.16:065:11
1111.06:075:10
1211.06:085:08
1310.96:095:06
1410.96:105:04
1510.96:125:03
1610.86:135:01
1710.86:145:00
1810.76:154:58
1910.76:174:56
2010.66:184:55
2110.66:194:53
2210.56:204:52
2310.56:224:50
2410.46:234:49
2510.46:244:47
2610.36:264:46
2710.36:274:45
2810.36:284:43
2910.26:294:42
3010.26:314:41
3110.16:324:39

Solar energy in October

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in October, about 2.93 kWh/m².

For context, solar energy here swings from a low near 1.49 kWh/m² to a high of 6.43 kWh/m² in June across the year — October's 2.93 kWh/m² falls in the middle.

01234151015202531
Solar energy (kWh/m²)Level
13.6Moderate
23.6Moderate
33.5Moderate
43.5Moderate
53.5Moderate
63.4Moderate
73.4Moderate
83.3Moderate
93.3Moderate
103.2Moderate
113.2Moderate
123.1Moderate
133.1Moderate
143.0Moderate
153.0Moderate
162.9Moderate
172.9Moderate
182.8Moderate
192.8Moderate
202.8Moderate
212.7Moderate
222.7Moderate
232.6Moderate
242.6Moderate
252.5Moderate
262.5Moderate
272.5Moderate
282.4Moderate
292.4Moderate
302.4Moderate
312.3Moderate
Planning a trip in October

Is October a good time to visit Greenfield?

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

4.4
Sightseeing
6th-best month of the year
0.6
Beach & pool
6th-best month of the year

October is a reasonable time to visit Greenfield for sightseeing.

What to pack for Greenfield in October

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

In October, Greenfield sees daytime highs around 58°F and nights near 46°F. Worth packing: a warm layer and rain gear. About 9 days see rain.

a warm layerrain gear

Sea temperature near Greenfield in October

The nearest coast averages about 56°F in October — the other half of the beach question. The full-year curve and swim-comfort zones are below.

The sea at the nearest coast (about 9 mi away) is warmest in August at about 70°F and coldest in March near 36°F.

It's comfortable for a long swim from Jul 24 to Sep 2 — about 1.3 months when the water holds above 68°F.

30°40°50°60°70°JanFebMarAprMayJunJulAugSepOctNovDecbracingcoolrefreshingwarm
Sea temperature (°F)Comfort
Jan38Bracing
Feb36Bracing
Mar36Bracing
Apr38Bracing
May43Bracing
Jun55Bracing
Jul67Cool
Aug70Refreshing
Sep66Cool
Oct56Bracing
Nov47Bracing
Dec41Bracing

UV index in Greenfield in October

LowModerateHighVery highExtreme

Clear-sky midday UV in October peaks around 3 — enough to warrant sun protection. The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Greenfield peaks around June 22 at about 9 (very high) — sunscreen, a hat and midday shade are essential. It bottoms out near January 1 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 22UV 9Jan 1UV 1
UV index (midday)Level
Jan1Low
Feb2Moderate
Mar4Moderate
Apr6High
May8Very high
Jun9Very high
Jul9Very high
Aug8Very high
Sep6High
Oct3Moderate
Nov2Moderate
Dec1Low

Air quality in Greenfield in October

GoodModeratePoorUnhealthyVery unhealthy

Average fine-particle pollution (PM2.5) through the year — so you can see where October falls, not just the annual average.

Air quality in Greenfield is worst in July — around 17 µg/m³ PM2.5 (moderate), about 1.8× the cleanest month (October, 9 µg/m³).

Modeled monthly averages (CAMS reanalysis, 2015–2024).

01020JanFebMarAprMayJunJulAugSepOctNovDecGoodModerateGoodJul 1017 µg/m³Oct 249 µg/m³
PM2.5 (µg/m³)Level
Jan11Good
Feb13Moderate
Mar15Moderate
Apr15Moderate
May16Moderate
Jun17Moderate
Jul17Moderate
Aug16Moderate
Sep13Moderate
Oct9Good
Nov9Good
Dec10Good
Location & terrain

Where is Greenfield?

Greenfield sits at 43.0°N, 88.0°W, 794 ft above sea level, in United States. The nearest listed city is West Allis, 3.7 mi away.

Topography around Greenfield

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

Within 2 miles, the terrain around Greenfield has only modest variations in elevation — a maximum elevation change of 161 ft around an average of 778 ft above sea level; within 10 miles, only modest variations in elevation — a maximum elevation change of 627 ft; within 50 miles, significant variations in elevation — a maximum elevation change of 840 ft.

The land around Greenfield is covered by artificial surfaces (46%) and trees (39%) within 2 miles, trees (34%) and artificial surfaces (32%) within 10 miles, and water (40%) and cropland (24%) within 50 miles.

2 miles
161 ft
10 miles
627 ft
50 miles
840 ft
treesgrasslandcroplandartificial surfaceswater
October weather nearby: West Allis 3.7 mi · New Berlin 5.0 mi · Franklin 5.0 mi · Wauwatosa 6.2 mi · Muskego 7.5 mi · Milwaukee 7.5 mi · Cudahy 7.5 mi · Brookfield 8.1 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 Greenfield (42.9614°, -88.0126°, elevation 794 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. Sea temperatures are the NOAA OISST v2.1 1991–2020 monthly climatology (public domain), sampled at the nearest ocean point. UV index is derived from CAMS (Copernicus Atmosphere Monitoring Service) clear-sky UV data — contains modified Copernicus Atmosphere Monitoring Service information. Monthly air-quality (PM2.5) seasonality is from the CAMS EAC4 reanalysis (Copernicus Atmosphere Monitoring Service), scaled to the WHO annual mean where available. Topography is sampled from the Copernicus DEM GLO-90 elevation model (© ESA/Airbus) and ESA WorldCover 2021 land cover (CC BY 4.0).