Riverdale weather in January
In January, Riverdale sees average daytime highs of 54°F and overnight lows near 35°F, with 4.0 in of precipitation across 10.1 wet days and about 10 hours of daylight. It is the 12th-warmest and 5th-wettest month of the year here.
Day-to-day highs hold fairly steady near 54°F through the month. The sky is clear or mostly clear about 36% of the time in January, and the air most often feels dry.
Daylight stretches from about 9 h 48 min at the start of January to 10 h 18 min by month's end. Set against the rest of the year, January is Riverdale's 6th-clearest and 1st-windiest month. For the whole year in context, see Riverdale's year-round climate.
- Daytime high
- 54°
- 12th warmest
- Overnight low
- 35°
- 1st coldest
- Precipitation
- 4.0 in
- 10.1 wet days
- Daylight
- 10 hours
- 7:47 AM – 5:47 PM
- Cloud cover
- 58%
- 6th clearest
- Wind
- 8 mph
- 1st windiest
- Solar energy
- 2.66 kWh/m²
- Travel score
- 3.2
- out of 10
Riverdale is city in Clayton County, Georgia, United States.
- Density
- 1,359/km²
- people per km²
Air quality: WHO Ambient Air Quality Database. Density & description: Wikidata (CC0), GeoNames.
Temperature in January
Day-to-day highs hold fairly steady near 54°F through the month.
A typical January day in Riverdale reaches about 54°F in the afternoon and slips back to 35°F overnight — a 18°F spread between the day's warmth and the night's chill. On most days the high lands between 40°F and 66°F. Set against its neighbours, January runs about 2°F cooler than December and about 4°F cooler than February.
| 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) | 54 | 54 | 54 | 54 | 54 | 54 | 54 | 54 | 54 | 54 | 53 | 53 | 53 | 53 | 53 | 53 | 53 | 53 | 53 | 53 | 53 | 54 | 54 | 54 | 54 | 54 | 54 | 54 | 54 | 55 | 55 |
| Avg low (°F) | 37 | 37 | 37 | 37 | 36 | 36 | 36 | 36 | 36 | 36 | 36 | 36 | 35 | 35 | 35 | 35 | 35 | 35 | 35 | 35 | 35 | 35 | 35 | 35 | 35 | 35 | 35 | 35 | 35 | 35 | 35 |
| Avg high (°F) | Avg low (°F) | |
|---|---|---|
| 1 | 54 | 37 |
| 2 | 54 | 37 |
| 3 | 54 | 37 |
| 4 | 54 | 37 |
| 5 | 54 | 36 |
| 6 | 54 | 36 |
| 7 | 54 | 36 |
| 8 | 54 | 36 |
| 9 | 54 | 36 |
| 10 | 54 | 36 |
| 11 | 53 | 36 |
| 12 | 53 | 36 |
| 13 | 53 | 35 |
| 14 | 53 | 35 |
| 15 | 53 | 35 |
| 16 | 53 | 35 |
| 17 | 53 | 35 |
| 18 | 53 | 35 |
| 19 | 53 | 35 |
| 20 | 53 | 35 |
| 21 | 53 | 35 |
| 22 | 54 | 35 |
| 23 | 54 | 35 |
| 24 | 54 | 35 |
| 25 | 54 | 35 |
| 26 | 54 | 35 |
| 27 | 54 | 35 |
| 28 | 54 | 35 |
| 29 | 54 | 35 |
| 30 | 55 | 35 |
| 31 | 55 | 35 |
How January really feels in Riverdale
Once humidity and wind are folded in, January averages 0 days that feel above 90°F and 31 that feel at or below 32°F — the comfort signal a plain temperature reading hides.
The story in January is cold — wind chill drags the overnight "feels like" below the raw low.
Riverdale weather by month
How January compares with the rest of the year at a glance. January is the 12th-warmest and 5th-wettest month here — the current month is highlighted below.
| Month | High / Low (°F) | Rainfall (inches) | Wet days | Snow days | Daylight (hours) | Travel score |
|---|---|---|---|---|---|---|
| Jan | 54° / 35° | 4.0 | 10.1 | 0.6 | 10 | 3.2 |
| Feb | 58° / 38° | 4.3 | 9.6 | 0.3 | 10.8 | 4.2 |
| Mar | 65° / 45° | 4.3 | 10.1 | 0.1 | 11.7 | 6.0 |
| Apr | 73° / 52° | 3.2 | 8.5 | 0 | 12.8 | 7.0 |
| May | 81° / 61° | 2.9 | 9.4 | 0 | 13.7 | 6.4 |
| Jun | 86° / 69° | 3.7 | 14 | 0 | 14.2 | 4.4 |
| Jul | 89° / 72° | 4.2 | 15.5 | 0 | 14 | 3.7 |
| Aug | 88° / 71° | 3.8 | 13.2 | 0 | 13.2 | 4.1 |
| Sep | 83° / 65° | 3.6 | 8.7 | 0 | 12.2 | 6.1 |
| Oct | 74° / 53° | 2.8 | 6.7 | 0 | 11.2 | 7.5 |
| Nov | 64° / 43° | 3.7 | 7.9 | 0 | 10.3 | 6.1 |
| Dec | 56° / 38° | 4.1 | 10 | 0.2 | 9.8 | 3.8 |
Cloud cover in January
The sky is clear or mostly clear about 36% of the time in January.
Beyond those clear spells, partly cloudy skies cover about 9% of January, with mostly cloudy or overcast conditions the remaining 54%.
| 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 (%) | 41 | 40 | 40 | 40 | 40 | 40 | 41 | 42 | 42 | 42 | 42 | 44 | 45 | 45 | 45 | 47 | 47 | 47 | 49 | 49 | 49 | 50 | 50 | 50 | 50 | 50 | 50 | 50 | 49 | 48 | 48 |
| Cloudier (%) | 59 | 60 | 60 | 60 | 60 | 60 | 59 | 58 | 58 | 58 | 58 | 56 | 55 | 55 | 55 | 53 | 53 | 53 | 51 | 51 | 51 | 50 | 50 | 50 | 50 | 50 | 50 | 50 | 51 | 52 | 52 |
| Clearer (%) | Cloudier (%) | |
|---|---|---|
| 1 | 41 | 59 |
| 2 | 40 | 60 |
| 3 | 40 | 60 |
| 4 | 40 | 60 |
| 5 | 40 | 60 |
| 6 | 40 | 60 |
| 7 | 41 | 59 |
| 8 | 42 | 58 |
| 9 | 42 | 58 |
| 10 | 42 | 58 |
| 11 | 42 | 58 |
| 12 | 44 | 56 |
| 13 | 45 | 55 |
| 14 | 45 | 55 |
| 15 | 45 | 55 |
| 16 | 47 | 53 |
| 17 | 47 | 53 |
| 18 | 47 | 53 |
| 19 | 49 | 51 |
| 20 | 49 | 51 |
| 21 | 49 | 51 |
| 22 | 50 | 50 |
| 23 | 50 | 50 |
| 24 | 50 | 50 |
| 25 | 50 | 50 |
| 26 | 50 | 50 |
| 27 | 50 | 50 |
| 28 | 50 | 50 |
| 29 | 49 | 51 |
| 30 | 48 | 52 |
| 31 | 48 | 52 |
Chance of precipitation in January
Riverdale gets around 4.0 in of rain and snow over 10.1 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 33% and peaks near 34% on the wettest days, and about 1 day brings snow.
| 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 (%) | 32 | 32 | 32 | 32 | 32 | 32 | 32 | 32 | 33 | 33 | 33 | 33 | 34 | 34 | 34 | 34 | 34 | 34 | 34 | 33 | 33 | 33 | 33 | 33 | 33 | 32 | 32 | 32 | 32 | 31 | 31 |
| Snow chance (%) | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 1 | 1 | 1 | 1 | 1 | 1 |
| Rain chance (%) | Snow chance (%) | |
|---|---|---|
| 1 | 32 | 2 |
| 2 | 32 | 2 |
| 3 | 32 | 2 |
| 4 | 32 | 2 |
| 5 | 32 | 2 |
| 6 | 32 | 2 |
| 7 | 32 | 2 |
| 8 | 32 | 2 |
| 9 | 33 | 2 |
| 10 | 33 | 2 |
| 11 | 33 | 2 |
| 12 | 33 | 2 |
| 13 | 34 | 2 |
| 14 | 34 | 2 |
| 15 | 34 | 2 |
| 16 | 34 | 2 |
| 17 | 34 | 2 |
| 18 | 34 | 2 |
| 19 | 34 | 2 |
| 20 | 33 | 2 |
| 21 | 33 | 2 |
| 22 | 33 | 2 |
| 23 | 33 | 2 |
| 24 | 33 | 2 |
| 25 | 33 | 2 |
| 26 | 32 | 1 |
| 27 | 32 | 1 |
| 28 | 32 | 1 |
| 29 | 32 | 1 |
| 30 | 31 | 1 |
| 31 | 31 | 1 |
Humidity in January
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 93% 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 (%) | 90 | 90 | 90 | 90 | 91 | 91 | 91 | 91 | 91 | 92 | 92 | 92 | 93 | 93 | 93 | 93 | 93 | 94 | 95 | 95 | 95 | 95 | 96 | 96 | 96 | 96 | 96 | 96 | 96 | 95 | 95 |
| Comfortable (%) | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 7 | 7 | 7 | 6 | 6 | 6 | 6 | 6 | 6 | 5 | 5 | 5 | 5 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 |
| Humid (%) | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 1 |
| Muggy (%) | 1 | 1 | 1 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| Dry (%) | Comfortable (%) | Humid (%) | Muggy (%) | |
|---|---|---|---|---|
| 1 | 90 | 8 | 1 | 1 |
| 2 | 90 | 8 | 1 | 1 |
| 3 | 90 | 8 | 1 | 1 |
| 4 | 90 | 8 | 1 | 1 |
| 5 | 91 | 8 | 1 | 0 |
| 6 | 91 | 8 | 1 | 0 |
| 7 | 91 | 8 | 1 | 0 |
| 8 | 91 | 8 | 1 | 0 |
| 9 | 91 | 8 | 1 | 0 |
| 10 | 92 | 7 | 1 | 0 |
| 11 | 92 | 7 | 1 | 0 |
| 12 | 92 | 7 | 1 | 0 |
| 13 | 93 | 6 | 1 | 0 |
| 14 | 93 | 6 | 1 | 0 |
| 15 | 93 | 6 | 1 | 0 |
| 16 | 93 | 6 | 1 | 0 |
| 17 | 93 | 6 | 1 | 0 |
| 18 | 94 | 6 | 0 | 0 |
| 19 | 95 | 5 | 0 | 0 |
| 20 | 95 | 5 | 0 | 0 |
| 21 | 95 | 5 | 0 | 0 |
| 22 | 95 | 5 | 0 | 0 |
| 23 | 96 | 4 | 0 | 0 |
| 24 | 96 | 4 | 0 | 0 |
| 25 | 96 | 4 | 0 | 0 |
| 26 | 96 | 4 | 0 | 0 |
| 27 | 96 | 4 | 0 | 0 |
| 28 | 96 | 4 | 0 | 0 |
| 29 | 96 | 4 | 0 | 0 |
| 30 | 95 | 4 | 1 | 0 |
| 31 | 95 | 4 | 1 | 0 |
Wind in January
Winds average 8 mph in January, the windiest month of the year.
Across January, daily wind ranges from about 7 mph on the calmest days to 8 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) | 7 | 7 | 7 | 7 | 7 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 |
| Feels | calm | calm | calm | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze |
| Wind speed (mph) | Feels | |
|---|---|---|
| 1 | 7 | calm |
| 2 | 7 | calm |
| 3 | 7 | calm |
| 4 | 7 | light breeze |
| 5 | 7 | light breeze |
| 6 | 8 | light breeze |
| 7 | 8 | light breeze |
| 8 | 8 | light breeze |
| 9 | 8 | light breeze |
| 10 | 8 | light breeze |
| 11 | 8 | light breeze |
| 12 | 8 | light breeze |
| 13 | 8 | light breeze |
| 14 | 8 | light breeze |
| 15 | 8 | light breeze |
| 16 | 8 | light breeze |
| 17 | 8 | light breeze |
| 18 | 8 | light breeze |
| 19 | 8 | light breeze |
| 20 | 8 | light breeze |
| 21 | 8 | light breeze |
| 22 | 8 | light breeze |
| 23 | 8 | light breeze |
| 24 | 8 | light breeze |
| 25 | 8 | light breeze |
| 26 | 8 | light breeze |
| 27 | 8 | light breeze |
| 28 | 8 | light breeze |
| 29 | 8 | light breeze |
| 30 | 8 | light breeze |
| 31 | 8 | light breeze |
Sunrise & sunset in January
Daylight runs from about 9 h 48 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 30 minutes over January. Sunrise moves from 7:47 AM to 7:41 AM, and sunset from 5:35 PM to 6:01 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) | 9.8 | 9.8 | 9.8 | 9.8 | 9.8 | 9.9 | 9.9 | 9.9 | 9.9 | 9.9 | 9.9 | 9.9 | 9.9 | 10.0 | 10.0 | 10.0 | 10.0 | 10.0 | 10.1 | 10.1 | 10.1 | 10.1 | 10.1 | 10.2 | 10.2 | 10.2 | 10.2 | 10.3 | 10.3 | 10.3 | 10.3 |
| Sunrise (AM) | 7:47 | 7:47 | 7:47 | 7:47 | 7:47 | 7:47 | 7:47 | 7:48 | 7:48 | 7:48 | 7:48 | 7:47 | 7:47 | 7:47 | 7:47 | 7:47 | 7:47 | 7:47 | 7:46 | 7:46 | 7:46 | 7:45 | 7:45 | 7:45 | 7:44 | 7:44 | 7:43 | 7:43 | 7:42 | 7:42 | 7:41 |
| Sunset (PM) | 5:35 | 5:36 | 5:36 | 5:37 | 5:38 | 5:39 | 5:39 | 5:40 | 5:41 | 5:42 | 5:43 | 5:43 | 5:44 | 5:45 | 5:46 | 5:47 | 5:48 | 5:49 | 5:50 | 5:51 | 5:51 | 5:52 | 5:53 | 5:54 | 5:55 | 5:56 | 5:57 | 5:58 | 5:59 | 6:00 | 6:01 |
| Daylight (h) | Sunrise (AM) | Sunset (PM) | |
|---|---|---|---|
| 1 | 9.8 | 7:47 | 5:35 |
| 2 | 9.8 | 7:47 | 5:36 |
| 3 | 9.8 | 7:47 | 5:36 |
| 4 | 9.8 | 7:47 | 5:37 |
| 5 | 9.8 | 7:47 | 5:38 |
| 6 | 9.9 | 7:47 | 5:39 |
| 7 | 9.9 | 7:47 | 5:39 |
| 8 | 9.9 | 7:48 | 5:40 |
| 9 | 9.9 | 7:48 | 5:41 |
| 10 | 9.9 | 7:48 | 5:42 |
| 11 | 9.9 | 7:48 | 5:43 |
| 12 | 9.9 | 7:47 | 5:43 |
| 13 | 9.9 | 7:47 | 5:44 |
| 14 | 10.0 | 7:47 | 5:45 |
| 15 | 10.0 | 7:47 | 5:46 |
| 16 | 10.0 | 7:47 | 5:47 |
| 17 | 10.0 | 7:47 | 5:48 |
| 18 | 10.0 | 7:47 | 5:49 |
| 19 | 10.1 | 7:46 | 5:50 |
| 20 | 10.1 | 7:46 | 5:51 |
| 21 | 10.1 | 7:46 | 5:51 |
| 22 | 10.1 | 7:45 | 5:52 |
| 23 | 10.1 | 7:45 | 5:53 |
| 24 | 10.2 | 7:45 | 5:54 |
| 25 | 10.2 | 7:44 | 5:55 |
| 26 | 10.2 | 7:44 | 5:56 |
| 27 | 10.2 | 7:43 | 5:57 |
| 28 | 10.3 | 7:43 | 5:58 |
| 29 | 10.3 | 7:42 | 5:59 |
| 30 | 10.3 | 7:42 | 6:00 |
| 31 | 10.3 | 7:41 | 6:01 |
Solar energy in January
Average shortwave solar energy reaching the ground each day in January, about 2.66 kWh/m².
For context, solar energy here swings from a low near 2.35 kWh/m² to a high of 6.12 kWh/m² in May across the year — January's 2.66 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) | 2.3 | 2.4 | 2.4 | 2.4 | 2.4 | 2.4 | 2.4 | 2.5 | 2.5 | 2.5 | 2.5 | 2.5 | 2.6 | 2.6 | 2.6 | 2.7 | 2.7 | 2.7 | 2.7 | 2.8 | 2.8 | 2.8 | 2.8 | 2.9 | 2.9 | 2.9 | 2.9 | 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 | 2.3 | Moderate |
| 2 | 2.4 | Moderate |
| 3 | 2.4 | Moderate |
| 4 | 2.4 | Moderate |
| 5 | 2.4 | Moderate |
| 6 | 2.4 | Moderate |
| 7 | 2.4 | Moderate |
| 8 | 2.5 | Moderate |
| 9 | 2.5 | Moderate |
| 10 | 2.5 | Moderate |
| 11 | 2.5 | Moderate |
| 12 | 2.5 | Moderate |
| 13 | 2.6 | Moderate |
| 14 | 2.6 | Moderate |
| 15 | 2.6 | Moderate |
| 16 | 2.7 | Moderate |
| 17 | 2.7 | Moderate |
| 18 | 2.7 | Moderate |
| 19 | 2.7 | Moderate |
| 20 | 2.8 | Moderate |
| 21 | 2.8 | Moderate |
| 22 | 2.8 | Moderate |
| 23 | 2.8 | Moderate |
| 24 | 2.9 | Moderate |
| 25 | 2.9 | Moderate |
| 26 | 2.9 | Moderate |
| 27 | 2.9 | Moderate |
| 28 | 3.0 | Moderate |
| 29 | 3.0 | Moderate |
| 30 | 3.0 | Moderate |
| 31 | 3.0 | Moderate |
Is January a good time to visit Riverdale?
Our two travel scores rate January for general sightseeing and for beach or pool weather — 0 (poor) to 10 (ideal).
January is a weaker month for outdoor sightseeing in Riverdale.
What to pack for Riverdale in January
From January's temperature range, rain chance, sun and wind — what's worth putting in the bag.
In January, Riverdale sees daytime highs around 54°F and nights near 35°F. Worth packing: a warm layer and rain gear. About 10 days see rain.
UV index in Riverdale in January
Clear-sky midday UV in January 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 Riverdale peaks around July 12 at about 10 (very high) — sunscreen, a hat and midday shade are essential. It bottoms out near December 19 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) | 3 | 5 | 5 | 7 | 8 | 9 | 10 | 9 | 7 | 5 | 4 | 3 |
| Level | Moderate | Moderate | High | Very high | Very high | Very high | Very high | Very high | Very high | High | Moderate | Moderate |
| UV index (midday) | Level | |
|---|---|---|
| Jan | 3 | Moderate |
| Feb | 5 | Moderate |
| Mar | 5 | High |
| Apr | 7 | Very high |
| May | 8 | Very high |
| Jun | 9 | Very high |
| Jul | 10 | Very high |
| Aug | 9 | Very high |
| Sep | 7 | Very high |
| Oct | 5 | High |
| Nov | 4 | Moderate |
| Dec | 3 | Moderate |
Air quality in Riverdale in January
Average fine-particle pollution (PM2.5) through the year — so you can see where January falls, not just the annual average.
Air quality in Riverdale is worst in July — around 21 µg/m³ PM2.5 (moderate), about 2.8× the cleanest month (January, 8 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) | 8 | 10 | 12 | 12 | 14 | 17 | 21 | 17 | 13 | 10 | 9 | 8 |
| Level | Good | Good | Moderate | Good | Moderate | Moderate | Moderate | Moderate | Moderate | Good | Good | Good |
| PM2.5 (µg/m³) | Level | |
|---|---|---|
| Jan | 8 | Good |
| Feb | 10 | Good |
| Mar | 12 | Moderate |
| Apr | 12 | Good |
| May | 14 | Moderate |
| Jun | 17 | Moderate |
| Jul | 21 | Moderate |
| Aug | 17 | Moderate |
| Sep | 13 | Moderate |
| Oct | 10 | Good |
| Nov | 9 | Good |
| Dec | 8 | Good |
Where is Riverdale?
Riverdale sits at 33.6°N, 84.4°W, 925 ft above sea level, in United States. The nearest listed city is Forest Park, 4.3 mi away.
Topography around Riverdale
How much the land rises and falls, and what covers it, within 2, 10 and 50 miles of Riverdale.
Within 2 miles, the terrain around Riverdale has only modest variations in elevation — a maximum elevation change of 554 ft around an average of 912 ft above sea level; within 10 miles, only modest variations in elevation — a maximum elevation change of 630 ft; within 50 miles, significant variations in elevation — a maximum elevation change of 1,549 ft.
The land around Riverdale is covered by trees (65%) and artificial surfaces (23%) within 2 miles, trees (67%) and artificial surfaces (20%) within 10 miles, and trees (82%) 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 Riverdale (33.5726°, -84.4133°, elevation 925 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. 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).