Greenfield weather in October

In October, Greenfield sees average daytime highs of 75°F and overnight lows near 52°F, with 0.7 in of rain across 2.1 wet days and about 11.1 hours of daylight. It is the 5th-warmest and 7th-wettest month of the year here.

Highs ease over the month, from about 79°F in the first days to 71°F by the end. The sky is clear or mostly clear about 74% of the time in October, and the air most often feels dry.

Daylight stretches from about 11 h 36 min at the start of October to 10 h 30 min by month's end. Set against the rest of the year, October is Greenfield's 5th-clearest and 11th-windiest month. For the whole year in context, see Greenfield's year-round climate.

Daytime high
75°
5th warmest
Overnight low
52°
8th coldest
Rainfall
0.7 in
2.1 wet days
Daylight
11 h 06 min
6:18 AM – 5:22 PM
Cloud cover
23%
5th clearest
Wind
4 mph
11th windiest
Solar energy
4.7 kWh/m²
Travel score
8.8
out of 10

Greenfield is city in Monterey County, California, United States.

Density
3,107/km²
people per km²
Founded
1947

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 79°F in the first days to 71°F by the end.

A typical October day in Greenfield reaches about 75°F in the afternoon and slips back to 52°F overnight — a 23°F spread between the day's warmth and the night's chill. On most days the high lands between 64°F and 86°F. Set against its neighbours, October runs about 8°F cooler than September and about 11°F warmer than November.

40°60°80°151015202531
Avg high (°F)Avg low (°F)
18055
28055
37955
47955
57854
67854
77854
87854
97753
107753
117753
127753
137653
147653
157652
167652
177552
187552
197552
207451
217451
227451
237351
247350
257350
267250
277249
287149
297149
307049
317048

Greenfield weather by month

How October compares with the rest of the year at a glance. October is the 5th-warmest and 7th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°F)Rainfall (inches)Wet daysDaylight (hours)Travel score
Jan58° / 40°3.57.69.84.5
Feb59° / 41°3.58.510.64.7
Mar63° / 43°2.67.511.75.9
Apr67° / 45°1.14.312.97.3
May74° / 50°0.52.213.98.7
Jun82° / 55°0.10.414.48.3
Jul87° / 60°0.00.314.26.4
Aug87° / 60°0.00.213.46.3
Sep83° / 58°0.10.712.27.9
Oct75° / 52°0.72.111.18.8
Nov64° / 44°1.24.210.16.8
Dec58° / 40°2.97.39.64.6

Cloud cover in October

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 74% of the time in October.

Beyond those clear spells, partly cloudy skies cover about 9% of October, with mostly cloudy or overcast conditions the remaining 17%. Skies tend to cloud over as the month goes on.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
18911
28911
38911
48812
58812
68614
78614
88614
98515
108416
118416
128416
138416
148416
158416
168218
178218
188218
198218
208218
218218
228218
238119
248119
258119
268119
277921
287921
297822
307723
317624

Chance of precipitation in October

Any precipitation

Greenfield gets around 0.7 in of rain over 2.1 wet days in October. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable rain averages around 6% and peaks near 10% on the wettest days.

0%10%20%30%151015202531
Rain chance (%)
14
24
34
44
55
65
75
85
95
105
115
125
135
145
156
166
176
186
196
207
217
227
238
248
258
268
279
289
299
3010
3110

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 98% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)
1982
2982
3982
4982
5982
6982
7982
8982
9982
10982
11982
12973
13973
14973
15973
16973
17973
18973
19973
20982
21982
22982
23982
24982
25982
26991
27991
28991
29991
30991
31991

Wind in October

Winds average 4 mph in October.

Across October, daily wind ranges from about 4 mph on the calmest days to 4 mph at its breeziest. It stays fairly steady from day to day.

0246810151015202531
Wind speed (mph)Feels
14calm
24calm
34calm
44calm
54calm
64calm
74calm
84calm
94calm
104calm
114calm
124calm
134calm
144calm
154calm
164calm
174calm
184calm
194calm
204calm
214calm
224calm
234calm
244calm
254calm
264calm
274calm
284calm
294calm
304calm
314calm

Sunrise & sunset in October

DaylightNight

Daylight runs from about 11 h 36 min at the start of October to 10 h 30 min by month's end. The lit band spans sunrise to sunset each day.

Days shrink by about 66 minutes over October. Sunrise moves from 6:05 AM to 6:33 AM, and sunset from 5:43 PM to 5:04 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
111.66:055:43
211.66:065:42
311.66:075:40
411.56:075:39
511.56:085:37
611.46:095:36
711.46:105:34
811.46:115:33
911.36:125:31
1011.36:135:30
1111.26:145:29
1211.26:155:27
1311.26:165:26
1411.16:165:24
1511.16:175:23
1611.16:185:22
1711.06:195:20
1811.06:205:19
1910.96:215:18
2010.96:225:17
2110.96:235:15
2210.86:245:14
2310.86:255:13
2410.86:265:12
2510.76:275:11
2610.76:285:10
2710.76:295:08
2810.66:305:07
2910.66:315:06
3010.66:325:05
3110.56:335:04

Solar energy in October

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in October, about 4.7 kWh/m².

For context, solar energy here swings from a low near 2.61 kWh/m² to a high of 8.4 kWh/m² in June across the year — October's 4.7 kWh/m² falls in the middle.

0246151015202531
Solar energy (kWh/m²)Level
15.5Bright
25.5Bright
35.4Bright
45.3Bright
55.3Bright
65.3Bright
75.2Bright
85.1Bright
95.1Bright
105.0Bright
115.0Bright
124.9Bright
134.9Bright
144.8Bright
154.8Bright
164.7Bright
174.7Bright
184.6Bright
194.5Bright
204.5Bright
214.4Bright
224.4Bright
234.3Bright
244.3Bright
254.2Bright
264.2Bright
274.1Bright
284.1Bright
294.0Bright
304.0Moderate
313.9Moderate
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).

8.8
Sightseeing
1st-best month of the year
7.2
Beach & pool
5th-best month of the year

October is one of the better times to visit Greenfield for general sightseeing. The water and warmth also suit a beach or pool day.

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 75°F and nights near 52°F. Worth packing: light clothes and sun protection.

light clothessun protection

Sea temperature near Greenfield in October

The nearest coast averages about 59°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 25 mi away) is warmest in September at about 59°F and coldest in April near 54°F.

The water stays below 68°F all year — cool enough that most swimmers want a wetsuit.

52°54°56°58°60°JanFebMarAprMayJunJulAugSepOctNovDecbracingcool
Sea temperature (°F)Comfort
Jan55Bracing
Feb55Bracing
Mar55Bracing
Apr54Bracing
May54Bracing
Jun55Bracing
Jul57Bracing
Aug59Bracing
Sep59Cool
Oct59Cool
Nov58Bracing
Dec56Bracing

UV index in Greenfield in October

LowModerateHighVery highExtreme

Clear-sky midday UV in October 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 Greenfield peaks around June 21 at about 11 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near December 14 at about 2 (moderate).

The index reaches 3 or more — the level where the WHO recommends sun protection — in 9 months of the year.

025710JanFebMarAprMayJunJulAugSepOctNovDecModerateHighVery highExtremeVery highHighModerateJun 21UV 11Dec 14UV 2
UV index (midday)Level
Jan3Moderate
Feb4Moderate
Mar5Moderate
Apr7High
May9Very high
Jun11Extreme
Jul11Extreme
Aug10Extreme
Sep7Very high
Oct6High
Nov3Moderate
Dec2Moderate

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 September — around 27 µg/m³ PM2.5 (moderate), about 7.0× the cleanest month (December, 4 µg/m³).

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

0102030JanFebMarAprMayJunJulAugSepOctNovDecGoodModerateGoodSep 1027 µg/m³Dec 174 µg/m³
PM2.5 (µg/m³)Level
Jan4Good
Feb5Good
Mar5Good
Apr5Good
May5Good
Jun5Good
Jul16Moderate
Aug25Moderate
Sep27Moderate
Oct6Good
Nov4Good
Dec4Good
Location & terrain

Where is Greenfield?

Greenfield sits at 36.3°N, 121.2°W, 289 ft above sea level, in United States. The nearest listed city is Soledad, 8.7 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 131 ft around an average of 279 ft above sea level; within 10 miles, large variations in elevation — a maximum elevation change of 3,671 ft; within 50 miles, very significant variations in elevation — a maximum elevation change of 5,883 ft.

The land around Greenfield is covered by cropland (67%) within 2 miles, grassland (53%) and cropland (22%) within 10 miles, and grassland (47%) and trees (23%) within 50 miles.

2 miles
131 ft
10 miles
3,671 ft
50 miles
5,883 ft
treesshrubsgrasslandcroplandartificial surfacesbare terrainwater
October weather nearby: Soledad 8.7 mi · Big Sur 32 mi · Salinas 34 mi · Hollister 38 mi · Seaside 39 mi · Prunedale 39 mi · Marina 40 mi · Monterey 41 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 (36.3208°, -121.2438°, elevation 289 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).