South Pasadena weather in December
In December, South Pasadena sees average daytime highs of 65°F and overnight lows near 46°F, with 2.0 in of rain across 4.6 wet days and about 9.8 hours of daylight. It is the 12th-warmest and 4th-wettest month of the year here.
Highs ease over the month, from about 67°F in the first days to 65°F by the end. The sky is clear or mostly clear about 52% of the time in December, and the air most often feels dry.
Daylight stretches from about 9 h 54 min at the start of December to 9 h 48 min by month's end. Set against the rest of the year, December is South Pasadena's 9th-clearest and 7th-windiest month. For the whole year in context, see South Pasadena's year-round climate.
- Daytime high
- 65°
- 12th warmest
- Overnight low
- 46°
- 1st coldest
- Rainfall
- 2.0 in
- 4.6 wet days
- Daylight
- 9 h 42 min
- 6:57 AM – 4:41 PM
- Cloud cover
- 42%
- 9th clearest
- Wind
- 4 mph
- 7th windiest
- Solar energy
- 2.96 kWh/m²
- Travel score
- 7.1
- out of 10
South Pasadena is city in Los Angeles County, California, United States.
- Density
- 2,954/km²
- people per km²
- Founded
- 1888
Air quality: WHO Ambient Air Quality Database. Density & description: Wikidata (CC0), GeoNames.
Temperature in December
Highs ease over the month, from about 67°F in the first days to 65°F by the end.
A typical December day in South Pasadena reaches about 65°F in the afternoon and slips back to 46°F overnight — a 19°F spread between the day's warmth and the night's chill. On most days the high lands between 58°F and 74°F. Set against its neighbours, December runs about 7°F cooler than November and on par with January.
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | 29 | 30 | 31 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg high (°F) | 68 | 68 | 67 | 67 | 67 | 67 | 66 | 66 | 66 | 66 | 66 | 66 | 65 | 65 | 65 | 65 | 65 | 65 | 65 | 65 | 65 | 65 | 65 | 65 | 65 | 65 | 65 | 65 | 65 | 65 | 65 |
| Avg low (°F) | 48 | 48 | 48 | 47 | 47 | 47 | 47 | 47 | 47 | 47 | 46 | 46 | 46 | 46 | 46 | 46 | 46 | 46 | 45 | 45 | 45 | 45 | 45 | 45 | 45 | 45 | 45 | 45 | 45 | 45 | 45 |
| Avg high (°F) | Avg low (°F) | |
|---|---|---|
| 1 | 68 | 48 |
| 2 | 68 | 48 |
| 3 | 67 | 48 |
| 4 | 67 | 47 |
| 5 | 67 | 47 |
| 6 | 67 | 47 |
| 7 | 66 | 47 |
| 8 | 66 | 47 |
| 9 | 66 | 47 |
| 10 | 66 | 47 |
| 11 | 66 | 46 |
| 12 | 66 | 46 |
| 13 | 65 | 46 |
| 14 | 65 | 46 |
| 15 | 65 | 46 |
| 16 | 65 | 46 |
| 17 | 65 | 46 |
| 18 | 65 | 46 |
| 19 | 65 | 45 |
| 20 | 65 | 45 |
| 21 | 65 | 45 |
| 22 | 65 | 45 |
| 23 | 65 | 45 |
| 24 | 65 | 45 |
| 25 | 65 | 45 |
| 26 | 65 | 45 |
| 27 | 65 | 45 |
| 28 | 65 | 45 |
| 29 | 65 | 45 |
| 30 | 65 | 45 |
| 31 | 65 | 45 |
South Pasadena weather by month
How December compares with the rest of the year at a glance. December is the 12th-warmest and 4th-wettest month here — the current month is highlighted below.
| Month | High / Low (°F) | Rainfall (inches) | Wet days | Daylight (hours) | Travel score |
|---|---|---|---|---|---|
| Jan | 66° / 46° | 3.2 | 5.5 | 10 | 6.9 |
| Feb | 66° / 48° | 3.4 | 5.9 | 10.7 | 6.8 |
| Mar | 69° / 50° | 2.2 | 5.2 | 11.7 | 7.3 |
| Apr | 73° / 53° | 0.8 | 2.5 | 12.8 | 8.3 |
| May | 76° / 57° | 0.3 | 1.5 | 13.8 | 8.9 |
| Jun | 80° / 60° | 0.1 | 0.3 | 14.2 | 8.7 |
| Jul | 85° / 64° | 0.1 | 0.4 | 14 | 7.0 |
| Aug | 87° / 65° | 0.0 | 0.1 | 13.3 | 6.4 |
| Sep | 85° / 63° | 0.1 | 0.5 | 12.2 | 7.0 |
| Oct | 80° / 58° | 0.6 | 2 | 11.1 | 8.4 |
| Nov | 72° / 51° | 0.8 | 2.2 | 10.2 | 8.4 |
| Dec | 65° / 46° | 2.0 | 4.6 | 9.8 | 7.1 |
Cloud cover in December
The sky is clear or mostly clear about 52% of the time in December.
Beyond those clear spells, partly cloudy skies cover about 12% of December, with mostly cloudy or overcast conditions the remaining 36%. Skies tend to cloud over as the month goes on.
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | 29 | 30 | 31 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Clearer (%) | 69 | 69 | 68 | 67 | 66 | 66 | 66 | 65 | 65 | 65 | 65 | 65 | 65 | 65 | 65 | 64 | 64 | 64 | 64 | 64 | 64 | 64 | 63 | 63 | 62 | 62 | 62 | 61 | 60 | 60 | 59 |
| Cloudier (%) | 31 | 31 | 32 | 33 | 34 | 34 | 34 | 35 | 35 | 35 | 35 | 35 | 35 | 35 | 35 | 36 | 36 | 36 | 36 | 36 | 36 | 36 | 37 | 37 | 38 | 38 | 38 | 39 | 40 | 40 | 41 |
| Clearer (%) | Cloudier (%) | |
|---|---|---|
| 1 | 69 | 31 |
| 2 | 69 | 31 |
| 3 | 68 | 32 |
| 4 | 67 | 33 |
| 5 | 66 | 34 |
| 6 | 66 | 34 |
| 7 | 66 | 34 |
| 8 | 65 | 35 |
| 9 | 65 | 35 |
| 10 | 65 | 35 |
| 11 | 65 | 35 |
| 12 | 65 | 35 |
| 13 | 65 | 35 |
| 14 | 65 | 35 |
| 15 | 65 | 35 |
| 16 | 64 | 36 |
| 17 | 64 | 36 |
| 18 | 64 | 36 |
| 19 | 64 | 36 |
| 20 | 64 | 36 |
| 21 | 64 | 36 |
| 22 | 64 | 36 |
| 23 | 63 | 37 |
| 24 | 63 | 37 |
| 25 | 62 | 38 |
| 26 | 62 | 38 |
| 27 | 62 | 38 |
| 28 | 61 | 39 |
| 29 | 60 | 40 |
| 30 | 60 | 40 |
| 31 | 59 | 41 |
Chance of precipitation in December
South Pasadena gets around 2.0 in of rain over 4.6 wet days in December. The line is the day-by-day chance of measurable precipitation.
Day to day, the chance of measurable rain averages around 15% and peaks near 17% on the wettest days.
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | 29 | 30 | 31 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Rain chance (%) | 12 | 12 | 13 | 13 | 13 | 14 | 14 | 14 | 14 | 15 | 15 | 15 | 15 | 15 | 15 | 16 | 16 | 16 | 16 | 16 | 16 | 16 | 16 | 16 | 16 | 16 | 16 | 16 | 16 | 16 | 17 |
| Rain chance (%) | |
|---|---|
| 1 | 12 |
| 2 | 12 |
| 3 | 13 |
| 4 | 13 |
| 5 | 13 |
| 6 | 14 |
| 7 | 14 |
| 8 | 14 |
| 9 | 14 |
| 10 | 15 |
| 11 | 15 |
| 12 | 15 |
| 13 | 15 |
| 14 | 15 |
| 15 | 15 |
| 16 | 16 |
| 17 | 16 |
| 18 | 16 |
| 19 | 16 |
| 20 | 16 |
| 21 | 16 |
| 22 | 16 |
| 23 | 16 |
| 24 | 16 |
| 25 | 16 |
| 26 | 16 |
| 27 | 16 |
| 28 | 16 |
| 29 | 16 |
| 30 | 16 |
| 31 | 17 |
Humidity in December
Most of December feels dry — the stacked bands show each day's mix of comfort levels, read off the dew point.
By dew point, December lands in the dry band about 98% of days. It rarely turns muggy — the humid and sticky bands barely register.
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | 29 | 30 | 31 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Dry (%) | 98 | 98 | 98 | 97 | 97 | 97 | 97 | 97 | 97 | 97 | 98 | 98 | 98 | 98 | 98 | 98 | 98 | 99 | 99 | 99 | 99 | 99 | 99 | 99 | 99 | 99 | 99 | 99 | 99 | 99 | 99 |
| Comfortable (%) | 2 | 2 | 2 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 |
| Dry (%) | Comfortable (%) | |
|---|---|---|
| 1 | 98 | 2 |
| 2 | 98 | 2 |
| 3 | 98 | 2 |
| 4 | 97 | 3 |
| 5 | 97 | 3 |
| 6 | 97 | 3 |
| 7 | 97 | 3 |
| 8 | 97 | 3 |
| 9 | 97 | 3 |
| 10 | 97 | 3 |
| 11 | 98 | 2 |
| 12 | 98 | 2 |
| 13 | 98 | 2 |
| 14 | 98 | 2 |
| 15 | 98 | 2 |
| 16 | 98 | 2 |
| 17 | 98 | 2 |
| 18 | 99 | 1 |
| 19 | 99 | 1 |
| 20 | 99 | 1 |
| 21 | 99 | 1 |
| 22 | 99 | 1 |
| 23 | 99 | 1 |
| 24 | 99 | 1 |
| 25 | 99 | 1 |
| 26 | 99 | 1 |
| 27 | 99 | 1 |
| 28 | 99 | 1 |
| 29 | 99 | 1 |
| 30 | 99 | 1 |
| 31 | 99 | 1 |
Wind in December
Winds average 4 mph in December.
Across December, 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.
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | 29 | 30 | 31 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Wind speed (mph) | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 |
| Feels | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm |
| Wind speed (mph) | Feels | |
|---|---|---|
| 1 | 4 | calm |
| 2 | 4 | calm |
| 3 | 4 | calm |
| 4 | 4 | calm |
| 5 | 4 | calm |
| 6 | 4 | calm |
| 7 | 4 | calm |
| 8 | 4 | calm |
| 9 | 4 | calm |
| 10 | 4 | calm |
| 11 | 4 | calm |
| 12 | 4 | calm |
| 13 | 4 | calm |
| 14 | 4 | calm |
| 15 | 4 | calm |
| 16 | 4 | calm |
| 17 | 4 | calm |
| 18 | 4 | calm |
| 19 | 4 | calm |
| 20 | 4 | calm |
| 21 | 4 | calm |
| 22 | 4 | calm |
| 23 | 4 | calm |
| 24 | 4 | calm |
| 25 | 4 | calm |
| 26 | 4 | calm |
| 27 | 4 | calm |
| 28 | 4 | calm |
| 29 | 4 | calm |
| 30 | 4 | calm |
| 31 | 4 | calm |
Sunrise & sunset in December
Daylight runs from about 9 h 54 min at the start of December to 9 h 48 min by month's end. The lit band spans sunrise to sunset each day.
Days shrink by about 6 minutes over December. Sunrise moves from 6:46 AM to 7:03 AM, and sunset from 4:39 PM to 4:48 PM.
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | 29 | 30 | 31 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Daylight (h) | 9.9 | 9.9 | 9.9 | 9.8 | 9.8 | 9.8 | 9.8 | 9.8 | 9.8 | 9.8 | 9.8 | 9.8 | 9.8 | 9.7 | 9.7 | 9.7 | 9.7 | 9.7 | 9.7 | 9.7 | 9.7 | 9.7 | 9.7 | 9.7 | 9.7 | 9.7 | 9.7 | 9.7 | 9.7 | 9.7 | 9.8 |
| Sunrise (AM) | 6:46 | 6:46 | 6:47 | 6:48 | 6:49 | 6:50 | 6:50 | 6:51 | 6:52 | 6:53 | 6:53 | 6:54 | 6:55 | 6:55 | 6:56 | 6:57 | 6:57 | 6:58 | 6:58 | 6:59 | 6:59 | 7:00 | 7:00 | 7:01 | 7:01 | 7:02 | 7:02 | 7:02 | 7:03 | 7:03 | 7:03 |
| Sunset (PM) | 4:39 | 4:39 | 4:39 | 4:39 | 4:39 | 4:39 | 4:39 | 4:39 | 4:39 | 4:39 | 4:40 | 4:40 | 4:40 | 4:40 | 4:41 | 4:41 | 4:41 | 4:42 | 4:42 | 4:42 | 4:43 | 4:43 | 4:44 | 4:44 | 4:45 | 4:45 | 4:46 | 4:46 | 4:47 | 4:48 | 4:48 |
| Daylight (h) | Sunrise (AM) | Sunset (PM) | |
|---|---|---|---|
| 1 | 9.9 | 6:46 | 4:39 |
| 2 | 9.9 | 6:46 | 4:39 |
| 3 | 9.9 | 6:47 | 4:39 |
| 4 | 9.8 | 6:48 | 4:39 |
| 5 | 9.8 | 6:49 | 4:39 |
| 6 | 9.8 | 6:50 | 4:39 |
| 7 | 9.8 | 6:50 | 4:39 |
| 8 | 9.8 | 6:51 | 4:39 |
| 9 | 9.8 | 6:52 | 4:39 |
| 10 | 9.8 | 6:53 | 4:39 |
| 11 | 9.8 | 6:53 | 4:40 |
| 12 | 9.8 | 6:54 | 4:40 |
| 13 | 9.8 | 6:55 | 4:40 |
| 14 | 9.7 | 6:55 | 4:40 |
| 15 | 9.7 | 6:56 | 4:41 |
| 16 | 9.7 | 6:57 | 4:41 |
| 17 | 9.7 | 6:57 | 4:41 |
| 18 | 9.7 | 6:58 | 4:42 |
| 19 | 9.7 | 6:58 | 4:42 |
| 20 | 9.7 | 6:59 | 4:42 |
| 21 | 9.7 | 6:59 | 4:43 |
| 22 | 9.7 | 7:00 | 4:43 |
| 23 | 9.7 | 7:00 | 4:44 |
| 24 | 9.7 | 7:01 | 4:44 |
| 25 | 9.7 | 7:01 | 4:45 |
| 26 | 9.7 | 7:02 | 4:45 |
| 27 | 9.7 | 7:02 | 4:46 |
| 28 | 9.7 | 7:02 | 4:46 |
| 29 | 9.7 | 7:03 | 4:47 |
| 30 | 9.7 | 7:03 | 4:48 |
| 31 | 9.8 | 7:03 | 4:48 |
Solar energy in December
Average shortwave solar energy reaching the ground each day in December, about 2.96 kWh/m² — the year's lowest.
For context, solar energy here swings from a low near 2.96 kWh/m² to a high of 8 kWh/m² in June across the year — December's 2.96 kWh/m² sits near the bottom.
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | 29 | 30 | 31 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Solar energy (kWh/m²) | 3.1 | 3.1 | 3.0 | 3.0 | 3.0 | 3.0 | 3.0 | 2.9 | 2.9 | 2.9 | 2.9 | 2.9 | 2.9 | 2.9 | 2.9 | 2.9 | 2.9 | 2.9 | 2.9 | 2.9 | 2.9 | 2.9 | 2.9 | 2.9 | 2.9 | 3.0 | 3.0 | 3.0 | 3.0 | 3.0 | 3.0 |
| Level | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate |
| Solar energy (kWh/m²) | Level | |
|---|---|---|
| 1 | 3.1 | Moderate |
| 2 | 3.1 | Moderate |
| 3 | 3.0 | Moderate |
| 4 | 3.0 | Moderate |
| 5 | 3.0 | Moderate |
| 6 | 3.0 | Moderate |
| 7 | 3.0 | Moderate |
| 8 | 2.9 | Moderate |
| 9 | 2.9 | Moderate |
| 10 | 2.9 | Moderate |
| 11 | 2.9 | Moderate |
| 12 | 2.9 | Moderate |
| 13 | 2.9 | Moderate |
| 14 | 2.9 | Moderate |
| 15 | 2.9 | Moderate |
| 16 | 2.9 | Moderate |
| 17 | 2.9 | Moderate |
| 18 | 2.9 | Moderate |
| 19 | 2.9 | Moderate |
| 20 | 2.9 | Moderate |
| 21 | 2.9 | Moderate |
| 22 | 2.9 | Moderate |
| 23 | 2.9 | Moderate |
| 24 | 2.9 | Moderate |
| 25 | 2.9 | Moderate |
| 26 | 3.0 | Moderate |
| 27 | 3.0 | Moderate |
| 28 | 3.0 | Moderate |
| 29 | 3.0 | Moderate |
| 30 | 3.0 | Moderate |
| 31 | 3.0 | Moderate |
Is December a good time to visit South Pasadena?
Our two travel scores rate December for general sightseeing and for beach or pool weather — 0 (poor) to 10 (ideal).
December is one of the better times to visit South Pasadena for general sightseeing.
What to pack for South Pasadena in December
From December's temperature range, rain chance, sun and wind — what's worth putting in the bag.
In December, South Pasadena sees daytime highs around 65°F and nights near 46°F. Worth packing: a warm layer. About 5 days see rain.
Sea temperature near South Pasadena in December
The nearest coast averages about 60°F in December — the other half of the beach question. The full-year curve and swim-comfort zones are below.
The sea at the nearest coast (about 21 mi away) is warmest in August at about 68°F and coldest in February near 59°F.
It's comfortable for a long swim from Aug 4 to Sep 13 — about 1.3 months when the water holds above 68°F.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Sea temperature (°F) | 59 | 59 | 59 | 59 | 62 | 65 | 67 | 68 | 68 | 66 | 63 | 60 |
| Comfort | Bracing | Bracing | Bracing | Cool | Cool | Cool | Cool | Refreshing | Refreshing | Cool | Cool | Cool |
| Sea temperature (°F) | Comfort | |
|---|---|---|
| Jan | 59 | Bracing |
| Feb | 59 | Bracing |
| Mar | 59 | Bracing |
| Apr | 59 | Cool |
| May | 62 | Cool |
| Jun | 65 | Cool |
| Jul | 67 | Cool |
| Aug | 68 | Refreshing |
| Sep | 68 | Refreshing |
| Oct | 66 | Cool |
| Nov | 63 | Cool |
| Dec | 60 | Cool |
UV index in South Pasadena in December
Clear-sky midday UV in December peaks around 3. The full-year curve, shaded by WHO exposure level, is below.
Under clear skies, the midday UV index in South Pasadena peaks around July 11 at about 11 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near December 16 at about 3 (moderate).
The index reaches 3 or more — the level where the WHO recommends sun protection — in 11 months of the year.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| UV index (midday) | 4 | 5 | 5 | 8 | 8 | 11 | 11 | 10 | 8 | 6 | 3 | 3 |
| Level | Moderate | Moderate | Moderate | Very high | Very high | Extreme | Extreme | Extreme | Very high | High | Moderate | Moderate |
| UV index (midday) | Level | |
|---|---|---|
| Jan | 4 | Moderate |
| Feb | 5 | Moderate |
| Mar | 5 | Moderate |
| Apr | 8 | Very high |
| May | 8 | Very high |
| Jun | 11 | Extreme |
| Jul | 11 | Extreme |
| Aug | 10 | Extreme |
| Sep | 8 | Very high |
| Oct | 6 | High |
| Nov | 3 | Moderate |
| Dec | 3 | Moderate |
Air quality in South Pasadena in December
Average fine-particle pollution (PM2.5) through the year — so you can see where December falls, not just the annual average.
Air quality in South Pasadena is worst in November — around 37 µg/m³ PM2.5 (poor), about 2.7× the cleanest month (May, 14 µg/m³).
Modeled monthly averages (CAMS reanalysis, 2015–2024).
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| PM2.5 (µg/m³) | 26 | 24 | 22 | 20 | 14 | 16 | 24 | 20 | 32 | 24 | 37 | 27 |
| Level | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Poor | Moderate |
| PM2.5 (µg/m³) | Level | |
|---|---|---|
| Jan | 26 | Moderate |
| Feb | 24 | Moderate |
| Mar | 22 | Moderate |
| Apr | 20 | Moderate |
| May | 14 | Moderate |
| Jun | 16 | Moderate |
| Jul | 24 | Moderate |
| Aug | 20 | Moderate |
| Sep | 32 | Moderate |
| Oct | 24 | Moderate |
| Nov | 37 | Poor |
| Dec | 27 | Moderate |
Where is South Pasadena?
South Pasadena sits at 34.1°N, 118.2°W, 659 ft above sea level, in United States. The nearest listed city is Alhambra, 1.9 mi away.
Topography around South Pasadena
How much the land rises and falls, and what covers it, within 2, 10 and 50 miles of South Pasadena.
Within 2 miles, the terrain around South Pasadena has only modest variations in elevation — a maximum elevation change of 515 ft around an average of 673 ft above sea level; within 10 miles, very significant variations in elevation — a maximum elevation change of 6,014 ft; within 50 miles, extreme variations in elevation — a maximum elevation change of 10,013 ft.
The land around South Pasadena is covered by artificial surfaces (56%) and trees (40%) within 2 miles, artificial surfaces (61%) and trees (24%) within 10 miles, and artificial surfaces (24%) and water (22%) within 50 miles.
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
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 South Pasadena (34.1161°, -118.1504°, elevation 659 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).