Union City weather in May
In May, Union City sees average daytime highs of 81°F and overnight lows near 61°F, with 2.9 in of rain across 9.4 wet days and about 13.7 hours of daylight. It is the 5th-warmest and 11th-wettest month of the year here.
Highs climb over the month, from about 78°F in the first days to 84°F by the end. The sky is clear or mostly clear about 33% of the time in May, and the air most often feels dry.
Daylight stretches from about 13 h 18 min at the start of May to 14 hours by month's end. Set against the rest of the year, May is Union City's 5th-clearest and 8th-windiest month. For the whole year in context, see Union City's year-round climate.
- Daytime high
- 81°
- 5th warmest
- Overnight low
- 61°
- 8th coldest
- Rainfall
- 2.9 in
- 9.4 wet days
- Daylight
- 13 h 42 min
- 5:42 AM – 7:26 PM
- Cloud cover
- 56%
- 5th clearest
- Wind
- 6 mph
- 8th windiest
- Solar energy
- 6.12 kWh/m²
- Travel score
- 6.4
- out of 10
Union City is city in Fulton County, Georgia, United States.
- Density
- 406/km²
- people per km²
Air quality: WHO Ambient Air Quality Database. Density & description: Wikidata (CC0), GeoNames.
Temperature in May
Highs climb over the month, from about 78°F in the first days to 84°F by the end.
A typical May day in Union City reaches about 81°F in the afternoon and slips back to 61°F overnight — a 20°F spread between the day's warmth and the night's chill. On most days the high lands between 72°F and 88°F. Set against its neighbours, May runs about 8°F warmer than April and about 6°F cooler than June.
| 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) | 77 | 77 | 78 | 78 | 78 | 78 | 79 | 79 | 79 | 79 | 80 | 80 | 80 | 80 | 81 | 81 | 81 | 81 | 82 | 82 | 82 | 82 | 82 | 83 | 83 | 83 | 83 | 83 | 84 | 84 | 84 |
| Avg low (°F) | 56 | 56 | 57 | 57 | 58 | 58 | 58 | 58 | 59 | 59 | 59 | 60 | 60 | 60 | 61 | 61 | 61 | 62 | 62 | 62 | 63 | 63 | 63 | 64 | 64 | 64 | 65 | 65 | 65 | 65 | 66 |
| Avg high (°F) | Avg low (°F) | |
|---|---|---|
| 1 | 77 | 56 |
| 2 | 77 | 56 |
| 3 | 78 | 57 |
| 4 | 78 | 57 |
| 5 | 78 | 58 |
| 6 | 78 | 58 |
| 7 | 79 | 58 |
| 8 | 79 | 58 |
| 9 | 79 | 59 |
| 10 | 79 | 59 |
| 11 | 80 | 59 |
| 12 | 80 | 60 |
| 13 | 80 | 60 |
| 14 | 80 | 60 |
| 15 | 81 | 61 |
| 16 | 81 | 61 |
| 17 | 81 | 61 |
| 18 | 81 | 62 |
| 19 | 82 | 62 |
| 20 | 82 | 62 |
| 21 | 82 | 63 |
| 22 | 82 | 63 |
| 23 | 82 | 63 |
| 24 | 83 | 64 |
| 25 | 83 | 64 |
| 26 | 83 | 64 |
| 27 | 83 | 65 |
| 28 | 83 | 65 |
| 29 | 84 | 65 |
| 30 | 84 | 65 |
| 31 | 84 | 66 |
How May really feels in Union City
Once humidity and wind are folded in, May averages 0 days that feel above 90°F and 0 that feel at or below 32°F — the comfort signal a plain temperature reading hides.
May sits comfortably in between — no days that feel dangerously hot or drop to a hard freeze once humidity and wind are folded in.
Union City weather by month
How May compares with the rest of the year at a glance. May is the 5th-warmest and 11th-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 May
The sky is clear or mostly clear about 33% of the time in May.
Beyond those clear spells, partly cloudy skies cover about 18% of May, with mostly cloudy or overcast conditions the remaining 48%. 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 (%) | 52 | 52 | 51 | 52 | 52 | 52 | 52 | 52 | 52 | 52 | 52 | 52 | 53 | 53 | 53 | 53 | 53 | 53 | 53 | 53 | 52 | 52 | 52 | 51 | 51 | 51 | 50 | 49 | 49 | 49 | 47 |
| Cloudier (%) | 48 | 48 | 49 | 48 | 48 | 48 | 48 | 48 | 48 | 48 | 48 | 48 | 47 | 47 | 47 | 47 | 47 | 47 | 47 | 47 | 48 | 48 | 48 | 49 | 49 | 49 | 50 | 51 | 51 | 51 | 53 |
| Clearer (%) | Cloudier (%) | |
|---|---|---|
| 1 | 52 | 48 |
| 2 | 52 | 48 |
| 3 | 51 | 49 |
| 4 | 52 | 48 |
| 5 | 52 | 48 |
| 6 | 52 | 48 |
| 7 | 52 | 48 |
| 8 | 52 | 48 |
| 9 | 52 | 48 |
| 10 | 52 | 48 |
| 11 | 52 | 48 |
| 12 | 52 | 48 |
| 13 | 53 | 47 |
| 14 | 53 | 47 |
| 15 | 53 | 47 |
| 16 | 53 | 47 |
| 17 | 53 | 47 |
| 18 | 53 | 47 |
| 19 | 53 | 47 |
| 20 | 53 | 47 |
| 21 | 52 | 48 |
| 22 | 52 | 48 |
| 23 | 52 | 48 |
| 24 | 51 | 49 |
| 25 | 51 | 49 |
| 26 | 51 | 49 |
| 27 | 50 | 50 |
| 28 | 49 | 51 |
| 29 | 49 | 51 |
| 30 | 49 | 51 |
| 31 | 47 | 53 |
Chance of precipitation in May
Union City gets around 2.9 in of rain over 9.4 wet days in May. The line is the day-by-day chance of measurable precipitation.
Day to day, the chance of measurable rain averages around 31% and peaks near 39% on the wettest days. The odds climb toward the end of the month.
| 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 (%) | 29 | 29 | 29 | 29 | 29 | 29 | 29 | 29 | 29 | 29 | 29 | 29 | 29 | 29 | 29 | 29 | 29 | 29 | 29 | 29 | 30 | 31 | 31 | 32 | 33 | 34 | 35 | 37 | 38 | 39 | 39 |
| Rain chance (%) | |
|---|---|
| 1 | 29 |
| 2 | 29 |
| 3 | 29 |
| 4 | 29 |
| 5 | 29 |
| 6 | 29 |
| 7 | 29 |
| 8 | 29 |
| 9 | 29 |
| 10 | 29 |
| 11 | 29 |
| 12 | 29 |
| 13 | 29 |
| 14 | 29 |
| 15 | 29 |
| 16 | 29 |
| 17 | 29 |
| 18 | 29 |
| 19 | 29 |
| 20 | 29 |
| 21 | 30 |
| 22 | 31 |
| 23 | 31 |
| 24 | 32 |
| 25 | 33 |
| 26 | 34 |
| 27 | 35 |
| 28 | 37 |
| 29 | 38 |
| 30 | 39 |
| 31 | 39 |
Humidity in May
Most of May feels dry — the stacked bands show each day's mix of comfort levels, read off the dew point.
By dew point, May lands in the dry band about 32% of days. Sticky, muggy-or-worse air turns up on roughly 19% of them.
| 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 (%) | 52 | 51 | 49 | 47 | 46 | 44 | 43 | 41 | 40 | 39 | 38 | 36 | 35 | 34 | 33 | 32 | 31 | 30 | 29 | 28 | 27 | 25 | 24 | 22 | 21 | 19 | 18 | 16 | 15 | 14 | 13 |
| Comfortable (%) | 24 | 24 | 24 | 25 | 25 | 25 | 25 | 25 | 24 | 24 | 24 | 24 | 24 | 23 | 23 | 22 | 22 | 22 | 21 | 21 | 21 | 20 | 20 | 20 | 20 | 20 | 20 | 20 | 20 | 20 | 19 |
| Humid (%) | 18 | 18 | 19 | 20 | 20 | 21 | 21 | 22 | 23 | 23 | 24 | 25 | 25 | 26 | 27 | 27 | 28 | 28 | 29 | 29 | 30 | 30 | 31 | 31 | 31 | 31 | 31 | 31 | 31 | 31 | 30 |
| Muggy (%) | 6 | 7 | 8 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 14 | 15 | 16 | 16 | 17 | 18 | 18 | 19 | 20 | 20 | 21 | 22 | 23 | 23 | 24 | 25 | 27 | 28 | 29 | 30 | 32 |
| Oppressive (%) | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 1 | 1 | 1 | 2 | 2 | 2 | 3 | 3 | 3 | 4 | 4 | 5 | 5 | 6 | 6 |
| Dry (%) | Comfortable (%) | Humid (%) | Muggy (%) | Oppressive (%) | |
|---|---|---|---|---|---|
| 1 | 52 | 24 | 18 | 6 | 0 |
| 2 | 51 | 24 | 18 | 7 | 0 |
| 3 | 49 | 24 | 19 | 8 | 0 |
| 4 | 47 | 25 | 20 | 8 | 0 |
| 5 | 46 | 25 | 20 | 9 | 0 |
| 6 | 44 | 25 | 21 | 10 | 0 |
| 7 | 43 | 25 | 21 | 11 | 0 |
| 8 | 41 | 25 | 22 | 12 | 0 |
| 9 | 40 | 24 | 23 | 13 | 0 |
| 10 | 39 | 24 | 23 | 14 | 0 |
| 11 | 38 | 24 | 24 | 14 | 0 |
| 12 | 36 | 24 | 25 | 15 | 0 |
| 13 | 35 | 24 | 25 | 16 | 0 |
| 14 | 34 | 23 | 26 | 16 | 0 |
| 15 | 33 | 23 | 27 | 17 | 0 |
| 16 | 32 | 22 | 27 | 18 | 1 |
| 17 | 31 | 22 | 28 | 18 | 1 |
| 18 | 30 | 22 | 28 | 19 | 1 |
| 19 | 29 | 21 | 29 | 20 | 1 |
| 20 | 28 | 21 | 29 | 20 | 2 |
| 21 | 27 | 21 | 30 | 21 | 2 |
| 22 | 25 | 20 | 30 | 22 | 2 |
| 23 | 24 | 20 | 31 | 23 | 3 |
| 24 | 22 | 20 | 31 | 23 | 3 |
| 25 | 21 | 20 | 31 | 24 | 3 |
| 26 | 19 | 20 | 31 | 25 | 4 |
| 27 | 18 | 20 | 31 | 27 | 4 |
| 28 | 16 | 20 | 31 | 28 | 5 |
| 29 | 15 | 20 | 31 | 29 | 5 |
| 30 | 14 | 20 | 31 | 30 | 6 |
| 31 | 13 | 19 | 30 | 32 | 6 |
Wind in May
Winds average 6 mph in May.
Across May, daily wind ranges from about 6 mph on the calmest days to 7 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 | 6 | 6 | 6 | 6 | 6 | 6 | 6 | 6 | 6 | 6 | 6 | 6 | 6 | 6 | 6 | 6 | 6 | 6 | 6 | 6 | 6 | 6 | 6 | 6 | 6 | 6 | 6 |
| 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 | 7 | calm |
| 2 | 7 | calm |
| 3 | 7 | calm |
| 4 | 7 | calm |
| 5 | 6 | calm |
| 6 | 6 | calm |
| 7 | 6 | calm |
| 8 | 6 | calm |
| 9 | 6 | calm |
| 10 | 6 | calm |
| 11 | 6 | calm |
| 12 | 6 | calm |
| 13 | 6 | calm |
| 14 | 6 | calm |
| 15 | 6 | calm |
| 16 | 6 | calm |
| 17 | 6 | calm |
| 18 | 6 | calm |
| 19 | 6 | calm |
| 20 | 6 | calm |
| 21 | 6 | calm |
| 22 | 6 | calm |
| 23 | 6 | calm |
| 24 | 6 | calm |
| 25 | 6 | calm |
| 26 | 6 | calm |
| 27 | 6 | calm |
| 28 | 6 | calm |
| 29 | 6 | calm |
| 30 | 6 | calm |
| 31 | 6 | calm |
Sunrise & sunset in May
Daylight runs from about 13 h 18 min at the start of May to 14 hours by month's end. The lit band spans sunrise to sunset each day.
Days grow by about 42 minutes over May. Sunrise moves from 5:56 AM to 5:34 AM, and sunset from 7:15 PM to 7:37 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) | 13.3 | 13.3 | 13.4 | 13.4 | 13.4 | 13.5 | 13.5 | 13.5 | 13.6 | 13.6 | 13.6 | 13.6 | 13.7 | 13.7 | 13.7 | 13.7 | 13.8 | 13.8 | 13.8 | 13.8 | 13.9 | 13.9 | 13.9 | 13.9 | 13.9 | 14.0 | 14.0 | 14.0 | 14.0 | 14.0 | 14.0 |
| Sunrise (AM) | 5:56 | 5:55 | 5:54 | 5:53 | 5:52 | 5:51 | 5:50 | 5:49 | 5:48 | 5:47 | 5:46 | 5:45 | 5:45 | 5:44 | 5:43 | 5:42 | 5:42 | 5:41 | 5:40 | 5:40 | 5:39 | 5:38 | 5:38 | 5:37 | 5:37 | 5:36 | 5:36 | 5:35 | 5:35 | 5:35 | 5:34 |
| Sunset (PM) | 7:15 | 7:16 | 7:16 | 7:17 | 7:18 | 7:19 | 7:20 | 7:20 | 7:21 | 7:22 | 7:23 | 7:23 | 7:24 | 7:25 | 7:26 | 7:26 | 7:27 | 7:28 | 7:29 | 7:29 | 7:30 | 7:31 | 7:32 | 7:32 | 7:33 | 7:34 | 7:34 | 7:35 | 7:36 | 7:36 | 7:37 |
| Daylight (h) | Sunrise (AM) | Sunset (PM) | |
|---|---|---|---|
| 1 | 13.3 | 5:56 | 7:15 |
| 2 | 13.3 | 5:55 | 7:16 |
| 3 | 13.4 | 5:54 | 7:16 |
| 4 | 13.4 | 5:53 | 7:17 |
| 5 | 13.4 | 5:52 | 7:18 |
| 6 | 13.5 | 5:51 | 7:19 |
| 7 | 13.5 | 5:50 | 7:20 |
| 8 | 13.5 | 5:49 | 7:20 |
| 9 | 13.6 | 5:48 | 7:21 |
| 10 | 13.6 | 5:47 | 7:22 |
| 11 | 13.6 | 5:46 | 7:23 |
| 12 | 13.6 | 5:45 | 7:23 |
| 13 | 13.7 | 5:45 | 7:24 |
| 14 | 13.7 | 5:44 | 7:25 |
| 15 | 13.7 | 5:43 | 7:26 |
| 16 | 13.7 | 5:42 | 7:26 |
| 17 | 13.8 | 5:42 | 7:27 |
| 18 | 13.8 | 5:41 | 7:28 |
| 19 | 13.8 | 5:40 | 7:29 |
| 20 | 13.8 | 5:40 | 7:29 |
| 21 | 13.9 | 5:39 | 7:30 |
| 22 | 13.9 | 5:38 | 7:31 |
| 23 | 13.9 | 5:38 | 7:32 |
| 24 | 13.9 | 5:37 | 7:32 |
| 25 | 13.9 | 5:37 | 7:33 |
| 26 | 14.0 | 5:36 | 7:34 |
| 27 | 14.0 | 5:36 | 7:34 |
| 28 | 14.0 | 5:35 | 7:35 |
| 29 | 14.0 | 5:35 | 7:36 |
| 30 | 14.0 | 5:35 | 7:36 |
| 31 | 14.0 | 5:34 | 7:37 |
Solar energy in May
Average shortwave solar energy reaching the ground each day in May, about 6.12 kWh/m² — the sunniest month for solar.
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 — May's 6.12 kWh/m² sits near the top of that range.
| 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) | 6.0 | 6.0 | 6.0 | 6.0 | 6.0 | 6.0 | 6.1 | 6.1 | 6.1 | 6.1 | 6.1 | 6.1 | 6.1 | 6.2 | 6.2 | 6.2 | 6.2 | 6.2 | 6.2 | 6.1 | 6.1 | 6.1 | 6.1 | 6.1 | 6.1 | 6.1 | 6.1 | 6.0 | 6.0 | 6.0 | 6.0 |
| Level | Bright | Bright | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense |
| Solar energy (kWh/m²) | Level | |
|---|---|---|
| 1 | 6.0 | Bright |
| 2 | 6.0 | Bright |
| 3 | 6.0 | Intense |
| 4 | 6.0 | Intense |
| 5 | 6.0 | Intense |
| 6 | 6.0 | Intense |
| 7 | 6.1 | Intense |
| 8 | 6.1 | Intense |
| 9 | 6.1 | Intense |
| 10 | 6.1 | Intense |
| 11 | 6.1 | Intense |
| 12 | 6.1 | Intense |
| 13 | 6.1 | Intense |
| 14 | 6.2 | Intense |
| 15 | 6.2 | Intense |
| 16 | 6.2 | Intense |
| 17 | 6.2 | Intense |
| 18 | 6.2 | Intense |
| 19 | 6.2 | Intense |
| 20 | 6.1 | Intense |
| 21 | 6.1 | Intense |
| 22 | 6.1 | Intense |
| 23 | 6.1 | Intense |
| 24 | 6.1 | Intense |
| 25 | 6.1 | Intense |
| 26 | 6.1 | Intense |
| 27 | 6.1 | Intense |
| 28 | 6.0 | Intense |
| 29 | 6.0 | Intense |
| 30 | 6.0 | Intense |
| 31 | 6.0 | Intense |
Is May a good time to visit Union City?
Our two travel scores rate May for general sightseeing and for beach or pool weather — 0 (poor) to 10 (ideal).
May is a reasonable time to visit Union City for sightseeing. The water and warmth also suit a beach or pool day.
What to pack for Union City in May
From May's temperature range, rain chance, sun and wind — what's worth putting in the bag.
In May, Union City sees daytime highs around 81°F and nights near 61°F. Pack light clothes and sun protection. Worth having: rain gear. About 9 days see rain.
UV index in Union City in May
Clear-sky midday UV in May peaks around 8 — enough to warrant sun protection. The full-year curve, shaded by WHO exposure level, is below.
Under clear skies, the midday UV index in Union City 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 Union City in May
Average fine-particle pollution (PM2.5) through the year — so you can see where May falls, not just the annual average.
Air quality in Union City 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 Union City?
Union City sits at 33.6°N, 84.5°W, 968 ft above sea level, in United States. The nearest listed city is Riverdale, 7.5 mi away.
Topography around Union City
How much the land rises and falls, and what covers it, within 2, 10 and 50 miles of Union City.
Within 2 miles, the terrain around Union City has only modest variations in elevation — a maximum elevation change of 223 ft around an average of 974 ft above sea level; within 10 miles, only modest variations in elevation — a maximum elevation change of 643 ft; within 50 miles, significant variations in elevation — a maximum elevation change of 1,604 ft.
The land around Union City is covered by trees (62%) and artificial surfaces (25%) within 2 miles, trees (72%) 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 Union City (33.5871°, -84.5424°, elevation 968 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).