How many sunny days does Imperial have per year?

Imperial averages approximately 341 sunny days per year, based on historical climate data.

What is the air quality in Imperial?

Imperial has an annual PM2.5 concentration of 8.9 µg/m³, classified as "Good" by WHO standards. Within WHO interim target 4. Low health risk for most people.

California

Imperial · United States

A city in the United States.

Small city

17K

-19m

16:46 UTC-7

USD

Explore on map →Climate twin →

Imperial, United States is a 17K-resident city with 341 sunny days and 0 frost days annually and an annual PM2.5 of 8.9 µg/m³. A city in the United States.

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Climate

Feels-like °C

Dinner outside

Climate Lab · Imperial

Monthly climate metrics across temperature, precipitation, wind, and UV.

Metric	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec	Year
Temperature
Daily high°C	23	26	27	35	38	43	45	44	42	38	28	23	34
Daily mean°C	16	18	21	27	31	37	41	38	35	28	21	17	27
Daily low°C	9	11	13	16	21	27	31	30	25	19	12	9	19
Thermal comfort
High feelsDaily high feels-like°C	26	29	31	38	41	47	49	49	46	40	31	27	38
Mean feelsDaily mean feels-like°C	15	18	20	29	33	40	43	42	37	30	20	16	29
Low feelsDaily low feels-like°C	2	4	6	11	18	26	31	29	22	14	5	3	14
Humidity
HumidityRelative humidity%	26	22	27	16	16	16	21	23	23	20	22	33	22
Dewpoint°C	-3.0	-4.3	0.6	-0.7	3.0	6.8	13.7	13.2	9.9	2.8	-2.5	-0.7	3.2
Precipitation
Rainfallmm	14	2	6	0	0	0	3	13	6	0	0	3	47
Rain days≥1mm	2	1	1	0	0	0	1	4	1	0	0	1	11
Wind
Wind avgm/s	2.1	2.2	2.5	2.4	2.3	2.2	1.9	1.9	1.7	1.7	2.1	1.6	2.0
Wind gustsm/s	3.9	5.9	6.5	6.7	6.8	5.8	4.7	4.5	4.5	4.6	4.9	3.1	5.2
Sun & UV
Sunshinehrs/day	8.9	9.9	10.4	12.0	13.0	13.0	12.7	12.0	10.9	10.0	9.0	8.6	10.9
Clear skyindex	69%	81%	67%	89%	92%	93%	89%	85%	83%	90%	83%	70%	82%
UV indexmax avg	3.2	4.7	6.4	8.6	9.7	10.4	10.4	10.0	8.2	5.9	4.0	2.9	7.0

Based on 2014–2024 hourly climate data · Updated Mar 2025

Confidence: High

Lifestyle Calendar · Imperial

Outdoor living in Imperial is seasonal. June through August are the toughest stretch. Dinner outside works 4/12 months, while lunch outside works 5/12 months.

Jan

Feb

Mar

Apr

May

Jun

Jul

Aug

Sep

Oct

Nov

Dec

Annual

4/12

Dinner Outside

10Jan: 10% viability

25Feb: 25% viability

54Mar: 54% viability

77Apr: 77% viability

72May: 72% viability

46Jun: 46% viability

21Jul: 21% viability

35Aug: 35% viability

71Sep: 71% viability

88Oct: 88% viability

40Nov: 40% viability

12Dec: 12% viability

4/12

Dinner Outside

10Jan: 10% viability

25Feb: 25% viability

54Mar: 54% viability

77Apr: 77% viability

72May: 72% viability

46Jun: 46% viability

21Jul: 21% viability

35Aug: 35% viability

71Sep: 71% viability

88Oct: 88% viability

40Nov: 40% viability

12Dec: 12% viability

46%

Cold

5/12

Lunch Outside

96Jan: 96% viability

95Feb: 95% viability

91Mar: 91% viability

58Apr: 58% viability

26May: 26% viability

6Jun: 6% viability

0Jul: 0% viability

0Aug: 0% viability

8Sep: 8% viability

49Oct: 49% viability

96Nov: 96% viability

99Dec: 99% viability

5/12

Lunch Outside

96Jan: 96% viability

95Feb: 95% viability

91Mar: 91% viability

58Apr: 58% viability

26May: 26% viability

6Jun: 6% viability

0Jul: 0% viability

0Aug: 0% viability

8Sep: 8% viability

49Oct: 49% viability

96Nov: 96% viability

99Dec: 99% viability

52%

Heat

5/12

Walking

99Jan: 99% viability

99Feb: 99% viability

95Mar: 95% viability

58Apr: 58% viability

24May: 24% viability

5Jun: 5% viability

0Jul: 0% viability

1Aug: 1% viability

8Sep: 8% viability

46Oct: 46% viability

96Nov: 96% viability

100Dec: 100% viability

100

5/12

Walking

99Jan: 99% viability

99Feb: 99% viability

95Mar: 95% viability

58Apr: 58% viability

24May: 24% viability

5Jun: 5% viability

0Jul: 0% viability

1Aug: 1% viability

8Sep: 8% viability

46Oct: 46% viability

96Nov: 96% viability

100Dec: 100% viability

100

53%

Heat

3/12

Running

93Jan: 93% viability

72Feb: 72% viability

55Mar: 55% viability

17Apr: 17% viability

3May: 3% viability

0Jun: 0% viability

0Jul: 0% viability

0Aug: 0% viability

1Sep: 1% viability

10Oct: 10% viability

61Nov: 61% viability

90Dec: 90% viability

3/12

Running

93Jan: 93% viability

72Feb: 72% viability

55Mar: 55% viability

17Apr: 17% viability

3May: 3% viability

0Jun: 0% viability

0Jul: 0% viability

0Aug: 0% viability

1Sep: 1% viability

10Oct: 10% viability

61Nov: 61% viability

90Dec: 90% viability

34%

Heat

Tap any month for details · Click activity name for overview

ComfortableModerateUncomfortable

Based on 2014–2024 hourly climate data · Updated Mar 2025

Confidence: High

Climate

Feels-like °C

Dinner outside

Climate Lab · Imperial

Monthly climate metrics across temperature, precipitation, wind, and UV.

Metric	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec	Year
Temperature
Daily high°C	23	26	27	35	38	43	45	44	42	38	28	23	34
Daily mean°C	16	18	21	27	31	37	41	38	35	28	21	17	27
Daily low°C	9	11	13	16	21	27	31	30	25	19	12	9	19
Thermal comfort
High feelsDaily high feels-like°C	26	29	31	38	41	47	49	49	46	40	31	27	38
Mean feelsDaily mean feels-like°C	15	18	20	29	33	40	43	42	37	30	20	16	29
Low feelsDaily low feels-like°C	2	4	6	11	18	26	31	29	22	14	5	3	14
Humidity
HumidityRelative humidity%	26	22	27	16	16	16	21	23	23	20	22	33	22
Dewpoint°C	-3.0	-4.3	0.6	-0.7	3.0	6.8	13.7	13.2	9.9	2.8	-2.5	-0.7	3.2
Precipitation
Rainfallmm	14	2	6	0	0	0	3	13	6	0	0	3	47
Rain days≥1mm	2	1	1	0	0	0	1	4	1	0	0	1	11
Wind
Wind avgm/s	2.1	2.2	2.5	2.4	2.3	2.2	1.9	1.9	1.7	1.7	2.1	1.6	2.0
Wind gustsm/s	3.9	5.9	6.5	6.7	6.8	5.8	4.7	4.5	4.5	4.6	4.9	3.1	5.2
Sun & UV
Sunshinehrs/day	8.9	9.9	10.4	12.0	13.0	13.0	12.7	12.0	10.9	10.0	9.0	8.6	10.9
Clear skyindex	69%	81%	67%	89%	92%	93%	89%	85%	83%	90%	83%	70%	82%
UV indexmax avg	3.2	4.7	6.4	8.6	9.7	10.4	10.4	10.0	8.2	5.9	4.0	2.9	7.0

Based on 2014–2024 hourly climate data · Updated Mar 2025

Confidence: High

Lifestyle Calendar · Imperial

Outdoor living in Imperial is seasonal. June through August are the toughest stretch. Dinner outside works 4/12 months, while lunch outside works 5/12 months.

Jan

Feb

Mar

Apr

May

Jun

Jul

Aug

Sep

Oct

Nov

Dec

Annual

4/12

Dinner Outside

10Jan: 10% viability

25Feb: 25% viability

54Mar: 54% viability

77Apr: 77% viability

72May: 72% viability

46Jun: 46% viability

21Jul: 21% viability

35Aug: 35% viability

71Sep: 71% viability

88Oct: 88% viability

40Nov: 40% viability

12Dec: 12% viability

4/12

Dinner Outside

10Jan: 10% viability

25Feb: 25% viability

54Mar: 54% viability

77Apr: 77% viability

72May: 72% viability

46Jun: 46% viability

21Jul: 21% viability

35Aug: 35% viability

71Sep: 71% viability

88Oct: 88% viability

40Nov: 40% viability

12Dec: 12% viability

46%

Cold

5/12

Lunch Outside

96Jan: 96% viability

95Feb: 95% viability

91Mar: 91% viability

58Apr: 58% viability

26May: 26% viability

6Jun: 6% viability

0Jul: 0% viability

0Aug: 0% viability

8Sep: 8% viability

49Oct: 49% viability

96Nov: 96% viability

99Dec: 99% viability

5/12

Lunch Outside

96Jan: 96% viability

95Feb: 95% viability

91Mar: 91% viability

58Apr: 58% viability

26May: 26% viability

6Jun: 6% viability

0Jul: 0% viability

0Aug: 0% viability

8Sep: 8% viability

49Oct: 49% viability

96Nov: 96% viability

99Dec: 99% viability

52%

Heat

5/12

Walking

99Jan: 99% viability

99Feb: 99% viability

95Mar: 95% viability

58Apr: 58% viability

24May: 24% viability

5Jun: 5% viability

0Jul: 0% viability

1Aug: 1% viability

8Sep: 8% viability

46Oct: 46% viability

96Nov: 96% viability

100Dec: 100% viability

100

5/12

Walking

99Jan: 99% viability

99Feb: 99% viability

95Mar: 95% viability

58Apr: 58% viability

24May: 24% viability

5Jun: 5% viability

0Jul: 0% viability

1Aug: 1% viability

8Sep: 8% viability

46Oct: 46% viability

96Nov: 96% viability

100Dec: 100% viability

100

53%

Heat

3/12

Running

93Jan: 93% viability

72Feb: 72% viability

55Mar: 55% viability

17Apr: 17% viability

3May: 3% viability

0Jun: 0% viability

0Jul: 0% viability

0Aug: 0% viability

1Sep: 1% viability

10Oct: 10% viability

61Nov: 61% viability

90Dec: 90% viability

3/12

Running

93Jan: 93% viability

72Feb: 72% viability

55Mar: 55% viability

17Apr: 17% viability

3May: 3% viability

0Jun: 0% viability

0Jul: 0% viability

0Aug: 0% viability

1Sep: 1% viability

10Oct: 10% viability

61Nov: 61% viability

90Dec: 90% viability

34%

Heat

Tap any month for details · Click activity name for overview

ComfortableModerateUncomfortable

Based on 2014–2024 hourly climate data · Updated Mar 2025

Confidence: High

Imperial · United States

Climate

Climate Lab · Imperial

Lifestyle Calendar · Imperial

Climate

Climate Lab · Imperial

Lifestyle Calendar · Imperial

Air Quality Profile

Air Quality Profile

Who thrives in Imperial

Frequently asked about Imperial

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