Crystal Lake weather in November
In November, Crystal Lake sees average daytime highs of 46°F and overnight lows near 33°F, with 2.4 in of precipitation across 7.8 wet days and about 9.6 hours of daylight. It is the 8th-warmest and 9th-wettest month of the year here.
Highs ease over the month, from about 52°F in the first days to 41°F by the end. The sky is clear or mostly clear about 25% of the time in November, and the air most often feels dry.
Daylight stretches from about 10 h 06 min at the start of November to 9 h 12 min by month's end. Set against the rest of the year, November is Crystal Lake's 7th-clearest and 1st-windiest month. For the whole year in context, see Crystal Lake's year-round climate.
- Daytime high
- 46°
- 8th warmest
- Overnight low
- 33°
- 5th coldest
- Precipitation
- 2.4 in
- 7.8 wet days
- Daylight
- 9 h 36 min
- 6:52 AM – 4:25 PM
- Cloud cover
- 65%
- 7th clearest
- Wind
- 9 mph
- 1st windiest
- Solar energy
- 2 kWh/m²
- Travel score
- 1.4
- out of 10
Crystal Lake is city in McHenry County, Illinois, USA.
- Density
- 780/km²
- people per km²
- Founded
- 1914
Air quality: WHO Ambient Air Quality Database. Density & description: Wikidata (CC0), GeoNames.
Temperature in November
Highs ease over the month, from about 52°F in the first days to 41°F by the end.
A typical November day in Crystal Lake reaches about 46°F in the afternoon and slips back to 33°F overnight — a 14°F spread between the day's warmth and the night's chill. On most days the high lands between 33°F and 60°F. Set against its neighbours, November runs about 14°F cooler than October and about 12°F warmer than December.
| 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 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg high (°F) | 53 | 52 | 52 | 51 | 51 | 50 | 50 | 49 | 49 | 49 | 48 | 48 | 47 | 47 | 46 | 46 | 46 | 45 | 45 | 44 | 44 | 44 | 43 | 43 | 42 | 42 | 41 | 41 | 40 | 40 |
| Avg low (°F) | 38 | 38 | 37 | 37 | 36 | 36 | 36 | 35 | 35 | 34 | 34 | 34 | 33 | 33 | 33 | 32 | 32 | 32 | 31 | 31 | 31 | 30 | 30 | 30 | 29 | 29 | 29 | 28 | 28 | 27 |
| Avg high (°F) | Avg low (°F) | |
|---|---|---|
| 1 | 53 | 38 |
| 2 | 52 | 38 |
| 3 | 52 | 37 |
| 4 | 51 | 37 |
| 5 | 51 | 36 |
| 6 | 50 | 36 |
| 7 | 50 | 36 |
| 8 | 49 | 35 |
| 9 | 49 | 35 |
| 10 | 49 | 34 |
| 11 | 48 | 34 |
| 12 | 48 | 34 |
| 13 | 47 | 33 |
| 14 | 47 | 33 |
| 15 | 46 | 33 |
| 16 | 46 | 32 |
| 17 | 46 | 32 |
| 18 | 45 | 32 |
| 19 | 45 | 31 |
| 20 | 44 | 31 |
| 21 | 44 | 31 |
| 22 | 44 | 30 |
| 23 | 43 | 30 |
| 24 | 43 | 30 |
| 25 | 42 | 29 |
| 26 | 42 | 29 |
| 27 | 41 | 29 |
| 28 | 41 | 28 |
| 29 | 40 | 28 |
| 30 | 40 | 27 |
How November really feels in Crystal Lake
Once humidity and wind are folded in, November averages 0 days that feel above 90°F and 30 that feel at or below 32°F — the comfort signal a plain temperature reading hides.
The story in November is cold — wind chill drags the overnight "feels like" below the raw low.
Crystal Lake weather by month
How November compares with the rest of the year at a glance. November is the 8th-warmest and 9th-wettest month here — the current month is highlighted below.
| Month | High / Low (°F) | Rainfall (inches) | Wet days | Snow days | Daylight (hours) | Travel score |
|---|---|---|---|---|---|---|
| Jan | 30° / 17° | 2.0 | 7.9 | 6 | 9.3 | 0.0 |
| Feb | 34° / 20° | 1.9 | 7 | 5.2 | 10.3 | 0.0 |
| Mar | 45° / 29° | 2.5 | 9.7 | 3.3 | 11.6 | 1.1 |
| Apr | 57° / 39° | 4.3 | 12.3 | 1.1 | 13.1 | 3.7 |
| May | 68° / 50° | 4.3 | 12.2 | 0 | 14.4 | 5.9 |
| Jun | 78° / 61° | 3.8 | 11.8 | 0 | 15 | 6.4 |
| Jul | 82° / 65° | 3.4 | 10.4 | 0 | 14.8 | 6.4 |
| Aug | 80° / 63° | 3.6 | 10.6 | 0 | 13.7 | 6.6 |
| Sep | 73° / 55° | 3.0 | 8.8 | 0 | 12.3 | 7.0 |
| Oct | 60° / 44° | 3.0 | 8.7 | 0.2 | 10.8 | 5.0 |
| Nov | 46° / 33° | 2.4 | 7.8 | 1.6 | 9.6 | 1.4 |
| Dec | 35° / 22° | 2.1 | 8 | 4.6 | 9 | 0.0 |
Cloud cover in November
The sky is clear or mostly clear about 25% of the time in November.
Beyond those clear spells, partly cloudy skies cover about 12% of November, with mostly cloudy or overcast conditions the remaining 64%.
| 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 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Clearer (%) | 39 | 40 | 39 | 39 | 39 | 39 | 39 | 39 | 39 | 39 | 38 | 37 | 38 | 37 | 36 | 36 | 36 | 35 | 34 | 35 | 34 | 34 | 34 | 34 | 34 | 34 | 34 | 34 | 34 | 34 |
| Cloudier (%) | 61 | 60 | 61 | 61 | 61 | 61 | 61 | 61 | 61 | 61 | 62 | 63 | 62 | 63 | 64 | 64 | 64 | 65 | 66 | 65 | 66 | 66 | 66 | 66 | 66 | 66 | 66 | 66 | 66 | 66 |
| Clearer (%) | Cloudier (%) | |
|---|---|---|
| 1 | 39 | 61 |
| 2 | 40 | 60 |
| 3 | 39 | 61 |
| 4 | 39 | 61 |
| 5 | 39 | 61 |
| 6 | 39 | 61 |
| 7 | 39 | 61 |
| 8 | 39 | 61 |
| 9 | 39 | 61 |
| 10 | 39 | 61 |
| 11 | 38 | 62 |
| 12 | 37 | 63 |
| 13 | 38 | 62 |
| 14 | 37 | 63 |
| 15 | 36 | 64 |
| 16 | 36 | 64 |
| 17 | 36 | 64 |
| 18 | 35 | 65 |
| 19 | 34 | 66 |
| 20 | 35 | 65 |
| 21 | 34 | 66 |
| 22 | 34 | 66 |
| 23 | 34 | 66 |
| 24 | 34 | 66 |
| 25 | 34 | 66 |
| 26 | 34 | 66 |
| 27 | 34 | 66 |
| 28 | 34 | 66 |
| 29 | 34 | 66 |
| 30 | 34 | 66 |
Chance of precipitation in November
Crystal Lake gets around 2.4 in of rain and snow over 7.8 wet days in November. The line is the day-by-day chance of measurable precipitation.
Day to day, the chance of measurable precipitation averages around 26% and peaks near 29% on the wettest days, and about 2 days bring 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 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Rain chance (%) | 26 | 26 | 26 | 26 | 25 | 25 | 25 | 25 | 25 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 25 | 25 | 26 | 26 | 26 | 27 | 27 | 28 | 28 | 29 | 29 | 29 | 29 |
| Snow chance (%) | 2 | 2 | 3 | 3 | 3 | 3 | 3 | 4 | 4 | 4 | 4 | 4 | 4 | 5 | 5 | 5 | 6 | 6 | 7 | 7 | 7 | 8 | 8 | 9 | 10 | 10 | 11 | 11 | 12 | 13 |
| Rain chance (%) | Snow chance (%) | |
|---|---|---|
| 1 | 26 | 2 |
| 2 | 26 | 2 |
| 3 | 26 | 3 |
| 4 | 26 | 3 |
| 5 | 25 | 3 |
| 6 | 25 | 3 |
| 7 | 25 | 3 |
| 8 | 25 | 4 |
| 9 | 25 | 4 |
| 10 | 24 | 4 |
| 11 | 24 | 4 |
| 12 | 24 | 4 |
| 13 | 24 | 4 |
| 14 | 24 | 5 |
| 15 | 24 | 5 |
| 16 | 24 | 5 |
| 17 | 24 | 6 |
| 18 | 25 | 6 |
| 19 | 25 | 7 |
| 20 | 26 | 7 |
| 21 | 26 | 7 |
| 22 | 26 | 8 |
| 23 | 27 | 8 |
| 24 | 27 | 9 |
| 25 | 28 | 10 |
| 26 | 28 | 10 |
| 27 | 29 | 11 |
| 28 | 29 | 11 |
| 29 | 29 | 12 |
| 30 | 29 | 13 |
Humidity in November
Most of November feels dry — the stacked bands show each day's mix of comfort levels, read off the dew point.
By dew point, November lands in the dry band about 99% 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 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Dry (%) | 96 | 97 | 97 | 98 | 98 | 98 | 98 | 99 | 99 | 99 | 99 | 99 | 99 | 99 | 99 | 99 | 100 | 100 | 100 | 100 | 100 | 100 | 100 | 100 | 100 | 100 | 100 | 100 | 100 | 100 |
| Comfortable (%) | 3 | 3 | 3 | 2 | 2 | 2 | 2 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| Humid (%) | 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 | 0 | 0 |
| Dry (%) | Comfortable (%) | Humid (%) | |
|---|---|---|---|
| 1 | 96 | 3 | 1 |
| 2 | 97 | 3 | 0 |
| 3 | 97 | 3 | 0 |
| 4 | 98 | 2 | 0 |
| 5 | 98 | 2 | 0 |
| 6 | 98 | 2 | 0 |
| 7 | 98 | 2 | 0 |
| 8 | 99 | 1 | 0 |
| 9 | 99 | 1 | 0 |
| 10 | 99 | 1 | 0 |
| 11 | 99 | 1 | 0 |
| 12 | 99 | 1 | 0 |
| 13 | 99 | 1 | 0 |
| 14 | 99 | 1 | 0 |
| 15 | 99 | 1 | 0 |
| 16 | 99 | 1 | 0 |
| 17 | 100 | 0 | 0 |
| 18 | 100 | 0 | 0 |
| 19 | 100 | 0 | 0 |
| 20 | 100 | 0 | 0 |
| 21 | 100 | 0 | 0 |
| 22 | 100 | 0 | 0 |
| 23 | 100 | 0 | 0 |
| 24 | 100 | 0 | 0 |
| 25 | 100 | 0 | 0 |
| 26 | 100 | 0 | 0 |
| 27 | 100 | 0 | 0 |
| 28 | 100 | 0 | 0 |
| 29 | 100 | 0 | 0 |
| 30 | 100 | 0 | 0 |
Wind in November
Winds average 9 mph in November, the windiest month of the year.
Across November, daily wind ranges from about 9 mph on the calmest days to 9 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 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Wind speed (mph) | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 |
| Feels | 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 | light breeze | light breeze |
| Wind speed (mph) | Feels | |
|---|---|---|
| 1 | 9 | light breeze |
| 2 | 9 | light breeze |
| 3 | 9 | light breeze |
| 4 | 9 | light breeze |
| 5 | 9 | light breeze |
| 6 | 9 | light breeze |
| 7 | 9 | light breeze |
| 8 | 9 | light breeze |
| 9 | 9 | light breeze |
| 10 | 9 | light breeze |
| 11 | 9 | light breeze |
| 12 | 9 | light breeze |
| 13 | 9 | light breeze |
| 14 | 9 | light breeze |
| 15 | 9 | light breeze |
| 16 | 9 | light breeze |
| 17 | 9 | light breeze |
| 18 | 9 | light breeze |
| 19 | 9 | light breeze |
| 20 | 9 | light breeze |
| 21 | 9 | light breeze |
| 22 | 9 | light breeze |
| 23 | 9 | light breeze |
| 24 | 9 | light breeze |
| 25 | 9 | light breeze |
| 26 | 9 | light breeze |
| 27 | 9 | light breeze |
| 28 | 9 | light breeze |
| 29 | 9 | light breeze |
| 30 | 9 | light breeze |
Sunrise & sunset in November
Daylight runs from about 10 h 06 min at the start of November to 9 h 12 min by month's end. The lit band spans sunrise to sunset each day.
Days shrink by about 54 minutes over November. Sunrise moves from 6:33 AM to 7:08 AM, and sunset from 4:41 PM to 4:18 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 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Daylight (h) | 10.1 | 10.1 | 10.0 | 10.0 | 10.0 | 9.9 | 9.9 | 9.8 | 9.8 | 9.8 | 9.7 | 9.7 | 9.7 | 9.6 | 9.6 | 9.6 | 9.5 | 9.5 | 9.5 | 9.4 | 9.4 | 9.4 | 9.3 | 9.3 | 9.3 | 9.3 | 9.2 | 9.2 | 9.2 | 9.2 |
| Sunrise (AM) | 6:33 | 6:34 | 6:36 | 6:37 | 6:38 | 6:39 | 6:41 | 6:42 | 6:43 | 6:44 | 6:46 | 6:47 | 6:48 | 6:49 | 6:51 | 6:52 | 6:53 | 6:54 | 6:55 | 6:57 | 6:58 | 6:59 | 7:00 | 7:01 | 7:02 | 7:03 | 7:05 | 7:06 | 7:07 | 7:08 |
| Sunset (PM) | 4:41 | 4:39 | 4:38 | 4:37 | 4:36 | 4:35 | 4:34 | 4:33 | 4:32 | 4:31 | 4:30 | 4:29 | 4:28 | 4:27 | 4:26 | 4:25 | 4:25 | 4:24 | 4:23 | 4:22 | 4:22 | 4:21 | 4:21 | 4:20 | 4:20 | 4:19 | 4:19 | 4:18 | 4:18 | 4:18 |
| Daylight (h) | Sunrise (AM) | Sunset (PM) | |
|---|---|---|---|
| 1 | 10.1 | 6:33 | 4:41 |
| 2 | 10.1 | 6:34 | 4:39 |
| 3 | 10.0 | 6:36 | 4:38 |
| 4 | 10.0 | 6:37 | 4:37 |
| 5 | 10.0 | 6:38 | 4:36 |
| 6 | 9.9 | 6:39 | 4:35 |
| 7 | 9.9 | 6:41 | 4:34 |
| 8 | 9.8 | 6:42 | 4:33 |
| 9 | 9.8 | 6:43 | 4:32 |
| 10 | 9.8 | 6:44 | 4:31 |
| 11 | 9.7 | 6:46 | 4:30 |
| 12 | 9.7 | 6:47 | 4:29 |
| 13 | 9.7 | 6:48 | 4:28 |
| 14 | 9.6 | 6:49 | 4:27 |
| 15 | 9.6 | 6:51 | 4:26 |
| 16 | 9.6 | 6:52 | 4:25 |
| 17 | 9.5 | 6:53 | 4:25 |
| 18 | 9.5 | 6:54 | 4:24 |
| 19 | 9.5 | 6:55 | 4:23 |
| 20 | 9.4 | 6:57 | 4:22 |
| 21 | 9.4 | 6:58 | 4:22 |
| 22 | 9.4 | 6:59 | 4:21 |
| 23 | 9.3 | 7:00 | 4:21 |
| 24 | 9.3 | 7:01 | 4:20 |
| 25 | 9.3 | 7:02 | 4:20 |
| 26 | 9.3 | 7:03 | 4:19 |
| 27 | 9.2 | 7:05 | 4:19 |
| 28 | 9.2 | 7:06 | 4:18 |
| 29 | 9.2 | 7:07 | 4:18 |
| 30 | 9.2 | 7:08 | 4:18 |
Solar energy in November
Average shortwave solar energy reaching the ground each day in November, about 2 kWh/m².
For context, solar energy here swings from a low near 1.6 kWh/m² to a high of 6.32 kWh/m² in June across the year — November's 2 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 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Solar energy (kWh/m²) | 2.4 | 2.4 | 2.3 | 2.3 | 2.3 | 2.3 | 2.2 | 2.2 | 2.2 | 2.1 | 2.1 | 2.1 | 2.1 | 2.0 | 2.0 | 2.0 | 2.0 | 1.9 | 1.9 | 1.9 | 1.9 | 1.8 | 1.8 | 1.8 | 1.8 | 1.8 | 1.8 | 1.7 | 1.7 | 1.7 |
| Level | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Dim | Dim | Dim | Dim | Dim | Dim | Dim | Dim | Dim | Dim | Dim | Dim | Dim | Dim | Dim |
| Solar energy (kWh/m²) | Level | |
|---|---|---|
| 1 | 2.4 | Moderate |
| 2 | 2.4 | Moderate |
| 3 | 2.3 | Moderate |
| 4 | 2.3 | Moderate |
| 5 | 2.3 | Moderate |
| 6 | 2.3 | Moderate |
| 7 | 2.2 | Moderate |
| 8 | 2.2 | Moderate |
| 9 | 2.2 | Moderate |
| 10 | 2.1 | Moderate |
| 11 | 2.1 | Moderate |
| 12 | 2.1 | Moderate |
| 13 | 2.1 | Moderate |
| 14 | 2.0 | Moderate |
| 15 | 2.0 | Moderate |
| 16 | 2.0 | Dim |
| 17 | 2.0 | Dim |
| 18 | 1.9 | Dim |
| 19 | 1.9 | Dim |
| 20 | 1.9 | Dim |
| 21 | 1.9 | Dim |
| 22 | 1.8 | Dim |
| 23 | 1.8 | Dim |
| 24 | 1.8 | Dim |
| 25 | 1.8 | Dim |
| 26 | 1.8 | Dim |
| 27 | 1.8 | Dim |
| 28 | 1.7 | Dim |
| 29 | 1.7 | Dim |
| 30 | 1.7 | Dim |
Is November a good time to visit Crystal Lake?
Our two travel scores rate November for general sightseeing and for beach or pool weather — 0 (poor) to 10 (ideal).
November is a weaker month for outdoor sightseeing in Crystal Lake.
What to pack for Crystal Lake in November
From November's temperature range, rain chance, sun and wind — what's worth putting in the bag.
In November, Crystal Lake sees daytime highs around 46°F and nights near 33°F. Pack a warm layer. Worth having: a heavy coat. About 8 days see rain.
Sea temperature near Crystal Lake in November
The nearest coast averages about 47°F in November — the other half of the beach question. The full-year curve and swim-comfort zones are below.
The sea at the nearest coast (about 24 mi away) is warmest in August at about 71°F and coldest in March near 36°F.
It's comfortable for a long swim from Jul 18 to Sep 8 — about 1.7 months when the water holds above 68°F.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Sea temperature (°F) | 38 | 36 | 36 | 38 | 43 | 55 | 68 | 71 | 67 | 57 | 47 | 42 |
| Comfort | Bracing | Bracing | Bracing | Bracing | Bracing | Bracing | Refreshing | Refreshing | Cool | Bracing | Bracing | Bracing |
| Sea temperature (°F) | Comfort | |
|---|---|---|
| Jan | 38 | Bracing |
| Feb | 36 | Bracing |
| Mar | 36 | Bracing |
| Apr | 38 | Bracing |
| May | 43 | Bracing |
| Jun | 55 | Bracing |
| Jul | 68 | Refreshing |
| Aug | 71 | Refreshing |
| Sep | 67 | Cool |
| Oct | 57 | Bracing |
| Nov | 47 | Bracing |
| Dec | 42 | Bracing |
UV index in Crystal Lake in November
Clear-sky midday UV in November peaks around 2. The full-year curve, shaded by WHO exposure level, is below.
Under clear skies, the midday UV index in Crystal Lake peaks around June 21 at about 9 (very high) — sunscreen, a hat and midday shade are essential. It bottoms out near December 21 at about 1 (low).
The index reaches 3 or more — the level where the WHO recommends sun protection — in 8 months of the year.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| UV index (midday) | 2 | 2 | 4 | 6 | 8 | 9 | 8 | 8 | 6 | 3 | 2 | 1 |
| Level | Low | Moderate | Moderate | High | Very high | Very high | Very high | Very high | High | Moderate | Moderate | Low |
| UV index (midday) | Level | |
|---|---|---|
| Jan | 2 | Low |
| Feb | 2 | Moderate |
| Mar | 4 | Moderate |
| Apr | 6 | High |
| May | 8 | Very high |
| Jun | 9 | Very high |
| Jul | 8 | Very high |
| Aug | 8 | Very high |
| Sep | 6 | High |
| Oct | 3 | Moderate |
| Nov | 2 | Moderate |
| Dec | 1 | Low |
Air quality in Crystal Lake in November
Average fine-particle pollution (PM2.5) through the year — so you can see where November falls, not just the annual average.
Air quality in Crystal Lake is worst in July — around 17 µg/m³ PM2.5 (moderate), about 1.9× the cleanest month (October, 9 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) | 12 | 15 | 16 | 14 | 15 | 16 | 17 | 16 | 13 | 9 | 10 | 11 |
| Level | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Good | Good | Good |
| PM2.5 (µg/m³) | Level | |
|---|---|---|
| Jan | 12 | Moderate |
| Feb | 15 | Moderate |
| Mar | 16 | Moderate |
| Apr | 14 | Moderate |
| May | 15 | Moderate |
| Jun | 16 | Moderate |
| Jul | 17 | Moderate |
| Aug | 16 | Moderate |
| Sep | 13 | Moderate |
| Oct | 9 | Good |
| Nov | 10 | Good |
| Dec | 11 | Good |
Where is Crystal Lake?
Crystal Lake sits at 42.2°N, 88.3°W, 915 ft above sea level, in United States. The nearest listed city is Lake in the Hills, 4.3 mi away.
Topography around Crystal Lake
How much the land rises and falls, and what covers it, within 2, 10 and 50 miles of Crystal Lake.
Within 2 miles, the terrain around Crystal Lake has only modest variations in elevation — a maximum elevation change of 171 ft around an average of 906 ft above sea level; within 10 miles, only modest variations in elevation — a maximum elevation change of 322 ft; within 50 miles, only modest variations in elevation — a maximum elevation change of 787 ft.
The land around Crystal Lake is covered by trees (47%) and artificial surfaces (27%) within 2 miles, trees (39%) and grassland (26%) within 10 miles, and cropland (38%) and trees (21%) 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 Crystal Lake (42.2411°, -88.3162°, elevation 915 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).