Flagstaff weather in April

In April, Flagstaff sees average daytime highs of 58°F and overnight lows near 33°F, with 1.2 in of precipitation across 5.6 wet days and about 12.9 hours of daylight. It is the 7th-warmest and 11th-wettest month of the year here.

Highs climb over the month, from about 54°F in the first days to 62°F by the end. The sky is clear or mostly clear about 52% of the time in April, and the air most often feels dry.

Daylight stretches from about 12 h 18 min at the start of April to 13 h 24 min by month's end. Set against the rest of the year, April is Flagstaff's 6th-clearest and 1st-windiest month. For the whole year in context, see Flagstaff's year-round climate.

Daytime high: 58°; 7th warmest
Overnight low: 33°; 6th coldest
Precipitation: 1.2 in; 5.6 wet days
Daylight: 12 h 54 min; 6:00 AM – 6:53 PM
Cloud cover: 40%; 6th clearest
Wind: 7 mph; 1st windiest
Solar energy: 7.26 kWh/m²
Travel score: 4.9; out of 10

Flagstaff is city in and county seat of Coconino County, Arizona, United States.

Density: 425/km²; people per km²
Founded: 1876

Air quality: WHO Ambient Air Quality Database. Density & description: Wikidata (CC0), GeoNames.

← March Flagstaff year-round climate May →Best places to visit in April

Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec

Temperature in April

Average highAverage lowShaded bands: 10–90% of days

Highs climb over the month, from about 54°F in the first days to 62°F by the end.

A typical April day in Flagstaff reaches about 58°F in the afternoon and slips back to 33°F overnight — a 24°F spread between the day's warmth and the night's chill. On most days the high lands between 45°F and 68°F. Set against its neighbours, April runs about 7°F warmer than March and about 10°F cooler than May.

	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	54	54	54	54	55	55	55	55	56	56	56	56	57	57	57	58	58	59	59	59	60	60	60	61	61	61	62	62	62
Avg low (°F)	31	31	31	31	31	31	31	32	32	32	32	32	33	33	33	33	33	34	34	34	35	35	35	36	36	36	37	37	37	37

	Avg high (°F)	Avg low (°F)
1	53	31
2	54	31
3	54	31
4	54	31
5	54	31
6	55	31
7	55	31
8	55	32
9	55	32
10	56	32
11	56	32
12	56	32
13	56	33
14	57	33
15	57	33
16	57	33
17	58	33
18	58	34
19	59	34
20	59	34
21	59	35
22	60	35
23	60	35
24	60	36
25	61	36
26	61	36
27	61	37
28	62	37
29	62	37
30	62	37

How April really feels in Flagstaff

Once humidity and wind are folded in, April 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.

Days feeling ≥ 90°F

heat index over the day's high

Days feeling ≤ 32°F

wind chill below the day's low

The story in April is cold — wind chill drags the overnight "feels like" below the raw low.

Flagstaff weather by month

How April compares with the rest of the year at a glance. April is the 7th-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	41° / 22°	1.8	6.3	5.6	9.9	0.1
Feb	44° / 24°	2.0	6.9	6.1	10.7	0.8
Mar	50° / 28°	1.9	7.3	5.1	11.7	2.6
Apr	58° / 33°	1.2	5.6	3	12.9	4.9
May	67° / 42°	1.3	5.7	0.8	13.8	7.2
Jun	78° / 51°	0.4	3	0	14.3	8.3
Jul	80° / 57°	4.5	14.8	0	14.1	6.0
Aug	77° / 55°	5.0	16.4	0	13.3	6.0
Sep	72° / 50°	2.3	8.8	0	12.2	7.3
Oct	62° / 40°	1.3	5.2	0.9	11.1	6.4
Nov	50° / 29°	1.3	4.1	3	10.1	2.9
Dec	41° / 22°	1.6	5.8	5.6	9.7	0.2

Cloud cover in April

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 52% of the time in April.

Beyond those clear spells, partly cloudy skies cover about 19% of April, with mostly cloudy or overcast conditions the remaining 30%.

	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 (%)	69	69	69	69	69	70	70	70	70	70	70	70	71	71	71	71	70	70	71	71	71	71	71	71	70	70	70	70	70	70
Cloudier (%)	31	31	31	31	31	30	30	30	30	30	30	30	29	29	29	29	30	30	29	29	29	29	29	29	30	30	30	30	30	30

	Clearer (%)	Cloudier (%)
1	69	31
2	69	31
3	69	31
4	69	31
5	69	31
6	70	30
7	70	30
8	70	30
9	70	30
10	70	30
11	70	30
12	70	30
13	71	29
14	71	29
15	71	29
16	71	29
17	70	30
18	70	30
19	71	29
20	71	29
21	71	29
22	71	29
23	71	29
24	71	29
25	70	30
26	70	30
27	70	30
28	70	30
29	70	30
30	70	30

Chance of precipitation in April

Any precipitationSnow

Flagstaff gets around 1.2 in of rain and snow over 5.6 wet days in April. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable precipitation averages around 19% and peaks near 23% on the wettest days, and about 3 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 (%)	23	23	22	22	22	21	21	20	20	20	19	19	18	18	18	17	17	17	17	17	17	17	18	18	18	18	18	19	19	19
Snow chance (%)	14	13	13	12	12	12	11	11	11	11	10	10	10	10	10	10	10	10	10	9	9	9	9	9	8	8	8	7	7	7

	Rain chance (%)	Snow chance (%)
1	23	14
2	23	13
3	22	13
4	22	12
5	22	12
6	21	12
7	21	11
8	20	11
9	20	11
10	20	11
11	19	10
12	19	10
13	18	10
14	18	10
15	18	10
16	17	10
17	17	10
18	17	10
19	17	10
20	17	9
21	17	9
22	17	9
23	18	9
24	18	9
25	18	8
26	18	8
27	18	8
28	19	7
29	19	7
30	19	7

Humidity in April

DryComfortableHumidMuggyOppressiveMiserable

Most of April feels dry — the stacked bands show each day's mix of comfort levels, read off the dew point.

By dew point, April lands in the dry band about 100% 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 (%)	100	100	100	100	100	100	100	100	100	100	100	100	100	100	100	100	100	100	100	100	100	100	100	100	100	100	100	100	100	100

	Dry (%)
1	100
2	100
3	100
4	100
5	100
6	100
7	100
8	100
9	100
10	100
11	100
12	100
13	100
14	100
15	100
16	100
17	100
18	100
19	100
20	100
21	100
22	100
23	100
24	100
25	100
26	100
27	100
28	100
29	100
30	100

Wind in April

Winds average 7 mph in April, the windiest month of the year.

Across April, daily wind ranges from about 7 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
Wind speed (mph)	7	7	7	7	7	7	7	7	7	7	7	7	7	7	7	7	7	7	7	7	7	7	7	7	7	7	7	7	7	7
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

	Wind speed (mph)	Feels
1	7	calm
2	7	calm
3	7	calm
4	7	calm
5	7	calm
6	7	calm
7	7	calm
8	7	calm
9	7	calm
10	7	calm
11	7	calm
12	7	calm
13	7	calm
14	7	calm
15	7	calm
16	7	calm
17	7	calm
18	7	calm
19	7	calm
20	7	calm
21	7	calm
22	7	calm
23	7	calm
24	7	calm
25	7	calm
26	7	calm
27	7	calm
28	7	calm
29	7	calm
30	7	calm

Sunrise & sunset in April

DaylightNight

Daylight runs from about 12 h 18 min at the start of April to 13 h 24 min by month's end. The lit band spans sunrise to sunset each day.

Days grow by about 66 minutes over April. Sunrise moves from 6:21 AM to 5:43 AM, and sunset from 6:41 PM to 7:05 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)	12.3	12.4	12.4	12.4	12.5	12.5	12.6	12.6	12.6	12.7	12.7	12.7	12.8	12.8	12.9	12.9	12.9	13.0	13.0	13.0	13.1	13.1	13.1	13.2	13.2	13.2	13.3	13.3	13.3	13.4
Sunrise (AM)	6:21	6:20	6:18	6:17	6:16	6:14	6:13	6:11	6:10	6:08	6:07	6:06	6:04	6:03	6:02	6:00	5:59	5:58	5:56	5:55	5:54	5:52	5:51	5:50	5:49	5:48	5:46	5:45	5:44	5:43
Sunset (PM)	6:41	6:42	6:43	6:44	6:44	6:45	6:46	6:47	6:48	6:49	6:49	6:50	6:51	6:52	6:53	6:53	6:54	6:55	6:56	6:57	6:58	6:58	6:59	7:00	7:01	7:02	7:03	7:03	7:04	7:05

	Daylight (h)	Sunrise (AM)	Sunset (PM)
1	12.3	6:21	6:41
2	12.4	6:20	6:42
3	12.4	6:18	6:43
4	12.4	6:17	6:44
5	12.5	6:16	6:44
6	12.5	6:14	6:45
7	12.6	6:13	6:46
8	12.6	6:11	6:47
9	12.6	6:10	6:48
10	12.7	6:08	6:49
11	12.7	6:07	6:49
12	12.7	6:06	6:50
13	12.8	6:04	6:51
14	12.8	6:03	6:52
15	12.9	6:02	6:53
16	12.9	6:00	6:53
17	12.9	5:59	6:54
18	13.0	5:58	6:55
19	13.0	5:56	6:56
20	13.0	5:55	6:57
21	13.1	5:54	6:58
22	13.1	5:52	6:58
23	13.1	5:51	6:59
24	13.2	5:50	7:00
25	13.2	5:49	7:01
26	13.2	5:48	7:02
27	13.3	5:46	7:03
28	13.3	5:45	7:03
29	13.3	5:44	7:04
30	13.4	5:43	7:05

Solar energy in April

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in April, about 7.26 kWh/m².

For context, solar energy here swings from a low near 3.08 kWh/m² to a high of 8.41 kWh/m² in June across the year — April's 7.26 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
Solar energy (kWh/m²)	6.7	6.7	6.8	6.8	6.9	6.9	7.0	7.0	7.0	7.1	7.1	7.2	7.2	7.3	7.3	7.3	7.3	7.4	7.4	7.4	7.5	7.5	7.5	7.5	7.6	7.6	7.6	7.6	7.7	7.7
Level	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	Intense

	Solar energy (kWh/m²)	Level
1	6.7	Intense
2	6.7	Intense
3	6.8	Intense
4	6.8	Intense
5	6.9	Intense
6	6.9	Intense
7	7.0	Intense
8	7.0	Intense
9	7.0	Intense
10	7.1	Intense
11	7.1	Intense
12	7.2	Intense
13	7.2	Intense
14	7.3	Intense
15	7.3	Intense
16	7.3	Intense
17	7.3	Intense
18	7.4	Intense
19	7.4	Intense
20	7.4	Intense
21	7.5	Intense
22	7.5	Intense
23	7.5	Intense
24	7.5	Intense
25	7.6	Intense
26	7.6	Intense
27	7.6	Intense
28	7.6	Intense
29	7.7	Intense
30	7.7	Intense

Planning a trip in April

Hazard calendar for Flagstaff

In seasonPeak

None of Flagstaff's seasonal hazards are active in April. The full-year calendar below shows when the rainy season, cyclone risk and dust haze do peak.

Flagstaff's rainy season runs July–September, when most of the year's rain falls.

Rainy season

Jan

Feb

Mar

Apr

May

Jun

Jul

Aug

Sep

Oct

Nov

Dec

Is April a good time to visit Flagstaff?

Our two travel scores rate April for general sightseeing and for beach or pool weather — 0 (poor) to 10 (ideal).

4.9

Sightseeing

7th-best month of the year

0.3

Beach & pool

7th-best month of the year

April is a reasonable time to visit Flagstaff for sightseeing.

What to pack for Flagstaff in April

From April's temperature range, rain chance, sun and wind — what's worth putting in the bag.

In April, Flagstaff sees daytime highs around 58°F and nights near 33°F. Pack sun protection. Worth having: a warm layer. About 6 days see rain.

sun protectiona warm layer

UV index in Flagstaff in April

LowModerateHighVery highExtreme

Clear-sky midday UV in April peaks around 6 — enough to warrant sun protection. The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Flagstaff peaks around June 23 at about 12 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near December 17 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	6	7	6	8	12	12	11	9	6	4	3
Level	Moderate	High	High	High	Very high	Extreme	Extreme	Extreme	Very high	High	Moderate	Moderate

	UV index (midday)	Level
Jan	4	Moderate
Feb	6	High
Mar	7	High
Apr	6	High
May	8	Very high
Jun	12	Extreme
Jul	12	Extreme
Aug	11	Extreme
Sep	9	Very high
Oct	6	High
Nov	4	Moderate
Dec	3	Moderate

Air quality in Flagstaff in April

GoodModeratePoorUnhealthyVery unhealthy

Average fine-particle pollution (PM2.5) through the year — so you can see where April falls, not just the annual average.

Air quality in Flagstaff is worst in June — around 23 µg/m³ PM2.5 (moderate), about 4.2× the cleanest month (December, 5 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)	7	6	7	10	11	23	10	8	13	16	12	5
Level	Good	Good	Good	Good	Good	Moderate	Good	Good	Moderate	Moderate	Good	Good

	PM2.5 (µg/m³)	Level
Jan	7	Good
Feb	6	Good
Mar	7	Good
Apr	10	Good
May	11	Good
Jun	23	Moderate
Jul	10	Good
Aug	8	Good
Sep	13	Moderate
Oct	16	Moderate
Nov	12	Good
Dec	5	Good

Location & terrain

Where is Flagstaff?

Flagstaff sits at 35.2°N, 111.7°W, 6,903 ft above sea level, in United States. The nearest listed city is Sedona, 24 mi away.

Topography around Flagstaff

How much the land rises and falls, and what covers it, within 2, 10 and 50 miles of Flagstaff.

Within 2 miles, the terrain around Flagstaff has only modest variations in elevation — a maximum elevation change of 643 ft around an average of 7,014 ft above sea level; within 10 miles, very significant variations in elevation — a maximum elevation change of 6,017 ft; within 50 miles, extreme variations in elevation — a maximum elevation change of 9,577 ft.

The land around Flagstaff is covered by trees (56%) and artificial surfaces (33%) within 2 miles, trees (76%) within 10 miles, and grassland (38%) and trees (36%) within 50 miles.

2 miles

643 ft

trees 56%

10 miles

6,017 ft

trees 76%

50 miles

9,577 ft

grassland 38%

treesshrubsgrasslandartificial surfacesbare terrain

← March Flagstaff year-round climate May →Best places to visit in April

April weather nearby: Sedona 24 mi · Prescott Valley 55 mi · Prescott 65 mi · Grand Canyon 65 mi · Payson 70 mi · Anthem 96 mi · Deer Valley 108 mi · Fountain Hills 110 mi

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 Flagstaff (35.1981°, -111.6513°, elevation 6,903 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).

	Avg high (°F)	Avg low (°F)
1	53	31
2	54	31
3	54	31
4	54	31
5	54	31
6	55	31
7	55	31
8	55	32
9	55	32
10	56	32
11	56	32
12	56	32
13	56	33
14	57	33
15	57	33
16	57	33
17	58	33
18	58	34
19	59	34
20	59	34
21	59	35
22	60	35
23	60	35
24	60	36
25	61	36
26	61	36
27	61	37
28	62	37
29	62	37
30	62	37

	Clearer (%)	Cloudier (%)
1	69	31
2	69	31
3	69	31
4	69	31
5	69	31
6	70	30
7	70	30
8	70	30
9	70	30
10	70	30
11	70	30
12	70	30
13	71	29
14	71	29
15	71	29
16	71	29
17	70	30
18	70	30
19	71	29
20	71	29
21	71	29
22	71	29
23	71	29
24	71	29
25	70	30
26	70	30
27	70	30
28	70	30
29	70	30
30	70	30

	Rain chance (%)	Snow chance (%)
1	23	14
2	23	13
3	22	13
4	22	12
5	22	12
6	21	12
7	21	11
8	20	11
9	20	11
10	20	11
11	19	10
12	19	10
13	18	10
14	18	10
15	18	10
16	17	10
17	17	10
18	17	10
19	17	10
20	17	9
21	17	9
22	17	9
23	18	9
24	18	9
25	18	8
26	18	8
27	18	8
28	19	7
29	19	7
30	19	7

	Dry (%)
1	100
2	100
3	100
4	100
5	100
6	100
7	100
8	100
9	100
10	100
11	100
12	100
13	100
14	100
15	100
16	100
17	100
18	100
19	100
20	100
21	100
22	100
23	100
24	100
25	100
26	100
27	100
28	100
29	100
30	100

	Avg high (°F)	Avg low (°F)
1	53	31
2	54	31
3	54	31
4	54	31
5	54	31
6	55	31
7	55	31
8	55	32
9	55	32
10	56	32
11	56	32
12	56	32
13	56	33
14	57	33
15	57	33
16	57	33
17	58	33
18	58	34
19	59	34
20	59	34
21	59	35
22	60	35
23	60	35
24	60	36
25	61	36
26	61	36
27	61	37
28	62	37
29	62	37
30	62	37

	Clearer (%)	Cloudier (%)
1	69	31
2	69	31
3	69	31
4	69	31
5	69	31
6	70	30
7	70	30
8	70	30
9	70	30
10	70	30
11	70	30
12	70	30
13	71	29
14	71	29
15	71	29
16	71	29
17	70	30
18	70	30
19	71	29
20	71	29
21	71	29
22	71	29
23	71	29
24	71	29
25	70	30
26	70	30
27	70	30
28	70	30
29	70	30
30	70	30

	Rain chance (%)	Snow chance (%)
1	23	14
2	23	13
3	22	13
4	22	12
5	22	12
6	21	12
7	21	11
8	20	11
9	20	11
10	20	11
11	19	10
12	19	10
13	18	10
14	18	10
15	18	10
16	17	10
17	17	10
18	17	10
19	17	10
20	17	9
21	17	9
22	17	9
23	18	9
24	18	9
25	18	8
26	18	8
27	18	8
28	19	7
29	19	7
30	19	7

	Dry (%)
1	100
2	100
3	100
4	100
5	100
6	100
7	100
8	100
9	100
10	100
11	100
12	100
13	100
14	100
15	100
16	100
17	100
18	100
19	100
20	100
21	100
22	100
23	100
24	100
25	100
26	100
27	100
28	100
29	100
30	100

	Avg high (°F)	Avg low (°F)
1	53	31
2	54	31
3	54	31
4	54	31
5	54	31
6	55	31
7	55	31
8	55	32
9	55	32
10	56	32
11	56	32
12	56	32
13	56	33
14	57	33
15	57	33
16	57	33
17	58	33
18	58	34
19	59	34
20	59	34
21	59	35
22	60	35
23	60	35
24	60	36
25	61	36
26	61	36
27	61	37
28	62	37
29	62	37
30	62	37

	Clearer (%)	Cloudier (%)
1	69	31
2	69	31
3	69	31
4	69	31
5	69	31
6	70	30
7	70	30
8	70	30
9	70	30
10	70	30
11	70	30
12	70	30
13	71	29
14	71	29
15	71	29
16	71	29
17	70	30
18	70	30
19	71	29
20	71	29
21	71	29
22	71	29
23	71	29
24	71	29
25	70	30
26	70	30
27	70	30
28	70	30
29	70	30
30	70	30

	Rain chance (%)	Snow chance (%)
1	23	14
2	23	13
3	22	13
4	22	12
5	22	12
6	21	12
7	21	11
8	20	11
9	20	11
10	20	11
11	19	10
12	19	10
13	18	10
14	18	10
15	18	10
16	17	10
17	17	10
18	17	10
19	17	10
20	17	9
21	17	9
22	17	9
23	18	9
24	18	9
25	18	8
26	18	8
27	18	8
28	19	7
29	19	7
30	19	7

	Dry (%)
1	100
2	100
3	100
4	100
5	100
6	100
7	100
8	100
9	100
10	100
11	100
12	100
13	100
14	100
15	100
16	100
17	100
18	100
19	100
20	100
21	100
22	100
23	100
24	100
25	100
26	100
27	100
28	100
29	100
30	100