Commerce has warm winters and warm summers, with very little rain. A typical July afternoon reaches 85°, a January night drops to 47°, and snow is almost unheard of.
NOAA 1991-2020 climate normalsUpdated once a decade
☀️
July high
85°
543rd coolest of 1,618 California towns
❄️
January low
47°
106th mildest of 1,618 California towns
💧
Rain + melted snow
13 in
543rd driest of 1,618 California towns
🌨️
Snow a winter
0.0 in
470th snowiest of 1,499 California towns
A normal year
What a year in Commerce feels like
❄️
Winter
69° / 47°
Typical high / low · Snow is rare
🌷
Spring
74° / 53°
Typical high / low · Frost is rare by spring
☀️
Summer
84° / 63°
Typical high / low · 65 days reach 90° in a normal year
🍂
Fall
81° / 57°
Typical high / low · Mild well into the fall
40°
50°
60°
70°
80°
90°
100°
32°
69°
47°
69°
48°
72°
50°
75°
53°
76°
57°
80°
60°
85°
64°
87°
64°
86°
63°
81°
58°
75°
51°
69°
46°
JanJFebFMarMAprAMayMJunJJulJAugASepSOctONovNDecD
32°, freezingBar runs from the typical overnight low up to the afternoon high
Best months to be outsideJanFebMarAprMayJunOctNovDecHighs of 62–84° and lows of 40° or more
Month by month
Commerce weather by month
Average highs, lows, rain and snow for every month, from NOAA’s 1991–2020 normals.
Month
High
Low
Rain + melt
Snow
Wet days
Snow on ground
30-yr range
January
69°
47°
3.1"
0
6
0
54° – 64°
February
69°
48°
3.6"
0
7
0
54° – 65°
March
72°
50°
2.1"
0
4
0
54° – 68°
April
75°
53°
0.7"
0
3
0
59° – 68°
May
76°
57°
0.3"
0
1
0
63° – 72°
June
80°
60°
0.1"
0
0
0
67° – 75°
July
85°
64°
0.0"
0
0
0
71° – 80°
August
87°
64°
0.0"
0
0
0
73° – 78°
September
86°
63°
0.1"
0
0
0
70° – 79°
October
81°
58°
0.5"
0
2
0
65° – 75°
November
75°
51°
0.8"
0
3
0
57° – 67°
December
69°
46°
2.2"
0
6
0
54° – 61°
Year
77°
55°
13.3"
0.0"
32
0
“Wet days” have at least 0.01" of rain or melted snow. “Snow on ground” counts days with 1" or more. The 30-year range is the coldest and warmest that month’s average temperature got between 1991 and 2020.
Rain & snow
Rain and snow in Commerce
Commerce gets 13 inches of rain and melted snow a year. February is the wettest month and August the driest. Rain or snow falls on about 32 days a year.
💧
13 in
Rain + melted snow a year
Less rain than 95% of U.S. towns
❄️
0.0 in
Snow in a normal winter
Less snow than 96% of U.S. towns
⛄
0 days
With 1"+ of snow on the ground
Fewer than 94% of U.S. towns
Rain + melted snow by month
Inches of water
3.6"
JFMAMJJASOND
Snowfall by month
No measurable snow in a normal year.
Frost & the growing season
A year-round growing season
🌿 Only about one winter in 7 dip to 32° here (15% of years), so gardens can grow year-round.
🥶
1
nights at or below 32° in a normal year
🧊
0
nights below 0° in a normal year
🔥
65
days that reach 90° in a normal year
Freezing nights by month
Average nights at or below 32°
JFMAMJJASOND
90° days by month
Average days at 90° or more
JFMAMJJASOND
Heating & cooling
Heating and cooling a home in Commerce
Engineers use “degree days” to estimate how hard a furnace or air conditioner works. In Commerce, 43% of that work is heating and 57% is cooling.
🔥
1,145 heating degree daysLess heating than 97% of U.S. towns
❄️
1,516 cooling degree daysMore cooling than 79% of U.S. towns
Degree days measure how far each day’s average temperature falls below or rises above 65°, added up over a year. Source: NOAA station normals.
Around Commerce
Commerce and its neighbors
Commerce borders 7 towns with climate data. January nights across them vary by 1.7°. Bell Gardens has the coldest January nights (47°) and Montebello the hottest July afternoons (87°). Commerce’s January low is 47° and its July high 85°.
Compared with every U.S. town and city on TownTapestry, each counted once.
Then and now
Warmer than it used to be
+2.6°1991–2020 average vs. the 20th century (1901–2000)
The last 30 years in Commerce averaged 2.6° warmer than the 1900s. The biggest change is in January (+3.2°). The shift is larger than in 100% of U.S. towns.
❄️ Winter+2.4°now 58°, was 56°
🌷 Spring+2.7°now 64°, was 61°
☀️ Summer+2.4°now 73°, was 71°
🍂 Fall+2.8°now 69°, was 66°
Change by month1991–2020 average minus 1901–2000 average, at Commerce’s spot on NOAA’s grid
+3.2°
+1.6°
JanJFebFMarMAprAMayMJunJJulJAugASepSOctONovNDecD
Year to year
How much a month can swing
A normal is an average, and real years wander around it. March swings the most: between 1991 and 2020 its average temperature ranged from 54° to 68°. August is the most reliable, staying within 6°.
40°
50°
60°
70°
80°
90°
JanJFebFMarMAprAMayMJunJJulJAugASepSOctONovNDecD
Coldest to warmest month in 30 yearsNormal
Questions
Common questions about Commerce’s climate
What is the coldest month in Commerce?
December, with a typical high of 69° and a low of 46°.
What is the hottest month in Commerce?
August, with a typical high of 87° and a low of 64°. About 65 days a year reach 90°.
How much snow does Commerce get?
Almost none. A normal year brings 0.0 inches.
When is the first frost in Commerce?
Frost is uncommon. Only 15% of years see a night at 32° or below.
What is the rainiest month in Commerce?
February, with 3.6 inches of rain and melted snow. The year totals 13 inches.
📍Temperatures and rainfall come from NOAA’s gridded climate normals for Commerce itself (about a 3-mile square). Snow, frost dates and day counts come from NOAA’s weather station at Whittier City Yard Fc106c, CA (7 mi, snow) and San Gabriel Fire Dept, CA (7 mi, frost, heat and degree days). Normals are 30-year averages, not a forecast. Source: NOAA NCEI U.S. Climate Normals, 1991–2020 and 1901–2000.