Fillmore weather in January

In January, Fillmore sees average daytime highs of 58°F and overnight lows near 40°F, with 3.3 in of precipitation across 5.8 wet days and about 10 hours of daylight. It is the 11th-warmest and 2nd-wettest month of the year here.

Day-to-day highs hold fairly steady near 58°F through the month. The sky is clear or mostly clear about 47% of the time in January, and the air most often feels dry.

Daylight stretches from about 9 h 42 min at the start of January to 10 h 18 min by month's end. Set against the rest of the year, January is Fillmore's 11th-clearest and 1st-windiest month. For the whole year in context, see Fillmore's year-round climate.

Daytime high
58°
11th warmest
Overnight low
40°
3rd coldest
Precipitation
3.3 in
5.8 wet days
Daylight
9 h 54 min
7:07 AM – 5:03 PM
Cloud cover
48%
11th clearest
Wind
4 mph
1st windiest
Solar energy
3.15 kWh/m²
Travel score
5.0
out of 10

Fillmore is city in Ventura County, California, United States.

Density
1,784/km²
people per km²
Founded
1914

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

Temperature in January

Average highAverage lowShaded bands: 10–90% of days

Day-to-day highs hold fairly steady near 58°F through the month.

A typical January day in Fillmore reaches about 58°F in the afternoon and slips back to 40°F overnight — a 18°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, January runs on par with December and on par with February.

30°40°50°60°70°80°151015202531
Avg high (°F)Avg low (°F)
15840
25840
35840
45840
55840
65840
75840
85840
95840
105840
115941
125941
135941
145941
155941
165941
175941
185941
195941
205941
215940
225940
235940
245940
255940
265940
275940
285940
295940
305940
315940

Fillmore weather by month

How January compares with the rest of the year at a glance. January is the 11th-warmest and 2nd-wettest month here — the current month is highlighted below.

MonthHigh / Low (°F)Rainfall (inches)Wet daysSnow daysDaylight (hours)Travel score
Jan58° / 40°3.35.81.8105.0
Feb59° / 40°3.671.910.74.9
Mar62° / 42°2.76.21.411.76.1
Apr67° / 45°1.03.70.712.87.5
May72° / 51°0.62.8013.88.4
Jun79° / 57°0.10.7014.39.0
Jul84° / 62°0.21014.17.6
Aug85° / 63°0.00.2013.37.4
Sep81° / 59°0.20.9012.28.5
Oct74° / 52°0.72.8011.18.7
Nov65° / 45°0.82.90.310.27.3
Dec58° / 40°2.251.19.75.1

Cloud cover in January

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 47% of the time in January.

Beyond those clear spells, partly cloudy skies cover about 13% of January, with mostly cloudy or overcast conditions the remaining 41%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
15743
25644
35644
45743
55644
65743
75743
85842
95941
105941
116040
126040
136040
146040
156139
166139
176139
186040
196040
206040
216040
226040
235941
245941
256040
266040
276040
286040
296139
306139
316238

Chance of precipitation in January

Any precipitationSnow

Fillmore gets around 3.3 in of rain and snow over 5.8 wet days in January. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable precipitation averages around 19% and peaks near 19% on the wettest days, and about 2 days bring snow.

0%10%20%30%151015202531
Rain chance (%)Snow chance (%)
1196
2196
3196
4195
5195
6195
7195
8195
9195
10195
11195
12195
13195
14196
15196
16196
17196
18196
19197
20197
21197
22197
23197
24197
25197
26196
27196
28196
29196
30196
31196

Humidity in January

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, January lands in the dry band about 100% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202531
Dry (%)
1100
2100
3100
4100
5100
6100
7100
8100
9100
10100
11100
12100
13100
14100
15100
16100
17100
18100
19100
20100
21100
22100
23100
24100
25100
26100
27100
28100
29100
30100
31100

Wind in January

Winds average 4 mph in January, the windiest month of the year.

Across January, 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 January

DaylightNight

Daylight runs from about 9 h 42 min at the start of January to 10 h 18 min by month's end. The lit band spans sunrise to sunset each day.

Days grow by about 36 minutes over January. Sunrise moves from 7:07 AM to 7:01 AM, and sunset from 4:51 PM to 5:17 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
19.77:074:51
29.77:074:52
39.87:074:52
49.87:074:53
59.87:074:54
69.87:074:55
79.87:084:55
89.87:084:56
99.87:084:57
109.87:084:58
119.97:084:59
129.97:074:59
139.97:075:00
149.97:075:01
159.97:075:02
169.97:075:03
1710.07:075:04
1810.07:065:05
1910.07:065:06
2010.07:065:07
2110.07:065:08
2210.17:055:09
2310.17:055:10
2410.17:045:10
2510.17:045:11
2610.17:035:12
2710.27:035:13
2810.27:025:14
2910.27:025:15
3010.27:015:16
3110.37:015:17

Solar energy in January

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in January, about 3.15 kWh/m².

For context, solar energy here swings from a low near 2.97 kWh/m² to a high of 8.34 kWh/m² in June across the year — January's 3.15 kWh/m² sits near the bottom.

01234151015202531
Solar energy (kWh/m²)Level
13.0Moderate
23.0Moderate
33.0Moderate
43.0Moderate
53.0Moderate
63.0Moderate
73.0Moderate
83.0Moderate
93.0Moderate
103.0Moderate
113.0Moderate
123.1Moderate
133.1Moderate
143.1Moderate
153.1Moderate
163.1Moderate
173.2Moderate
183.2Moderate
193.2Moderate
203.3Moderate
213.3Moderate
223.3Moderate
233.3Moderate
243.4Moderate
253.4Moderate
263.4Moderate
273.5Moderate
283.5Moderate
293.5Moderate
303.6Moderate
313.6Moderate
Planning a trip in January

Is January a good time to visit Fillmore?

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

5.0
Sightseeing
11th-best month of the year
0.0
Beach & pool
12th-best month of the year

January is a reasonable time to visit Fillmore for sightseeing.

What to pack for Fillmore in January

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

In January, Fillmore sees daytime highs around 58°F and nights near 40°F. Worth packing: a warm layer. About 6 days see rain.

a warm layer

Sea temperature near Fillmore in January

The nearest coast averages about 58°F in January — the other half of the beach question. The full-year curve and swim-comfort zones are below.

The sea at the nearest coast (about 22 mi away) is warmest in August at about 67°F and coldest in March near 58°F.

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

55°60°65°70°JanFebMarAprMayJunJulAugSepOctNovDecbracingcoolrefreshing
Sea temperature (°F)Comfort
Jan58Bracing
Feb58Bracing
Mar58Bracing
Apr58Bracing
May60Cool
Jun63Cool
Jul66Cool
Aug67Cool
Sep67Cool
Oct65Cool
Nov62Cool
Dec60Cool

UV index in Fillmore in January

LowModerateHighVery highExtreme

Clear-sky midday UV in January peaks around 4 — enough to warrant sun protection. The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Fillmore peaks around June 23 at about 11 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near December 15 at about 3 (moderate).

The index reaches 3 or more — the level where the WHO recommends sun protection — in 11 months of the year.

025710JanFebMarAprMayJunJulAugSepOctNovDecModerateHighVery highExtremeVery highHighModerateJun 23UV 11Dec 15UV 3
UV index (midday)Level
Jan4Moderate
Feb5Moderate
Mar5Moderate
Apr8Very high
May8Very high
Jun11Extreme
Jul11Extreme
Aug11Extreme
Sep8Very high
Oct6High
Nov3Moderate
Dec3Moderate

Air quality in Fillmore in January

GoodModeratePoorUnhealthyVery unhealthy

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

Air quality in Fillmore is worst in December — around 78 µg/m³ PM2.5 (unhealthy), about 12.6× the cleanest month (January, 6 µg/m³).

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

020406080JanFebMarAprMayJunJulAugSepOctNovDecGoodModerateUnhealthyDec 1670 µg/m³Jan 246 µg/m³
PM2.5 (µg/m³)Level
Jan6Good
Feb7Good
Mar8Good
Apr7Good
May7Good
Jun7Good
Jul11Good
Aug12Good
Sep11Good
Oct8Good
Nov14Moderate
Dec78Unhealthy
Location & terrain

Where is Fillmore?

Fillmore sits at 34.4°N, 118.9°W, 456 ft above sea level, in United States. The nearest listed city is Moorpark, 8.1 mi away.

Topography around Fillmore

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

Within 2 miles, the terrain around Fillmore has significant variations in elevation — a maximum elevation change of 1,506 ft around an average of 597 ft above sea level; within 10 miles, very significant variations in elevation — a maximum elevation change of 5,476 ft; within 50 miles, extreme variations in elevation — a maximum elevation change of 8,796 ft.

The land around Fillmore is covered by trees (30%) and grassland (22%) within 2 miles, trees (38%) and grassland (34%) within 10 miles, and grassland (29%), water (26%) and trees (20%) within 50 miles.

2 miles
1,506 ft
10 miles
5,476 ft
50 miles
8,796 ft
treesshrubsgrasslandcroplandartificial surfacesbare terrainwater
January weather nearby: Moorpark 8.1 mi · Santa Paula 8.7 mi · Simi Valley 12 mi · Camarillo 14 mi · Thousand Oaks 16 mi · Valencia 18 mi · Castaic 18 mi · Stevenson Ranch 20 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 Fillmore (34.3992°, -118.9181°, elevation 456 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).