Lewiston Orchards weather in May

In May, Lewiston Orchards sees average daytime highs of 67°F and overnight lows near 46°F, with 1.9 in of rain across 8.7 wet days and about 14.7 hours of daylight. It is the 5th-warmest and 7th-wettest month of the year here.

Highs climb over the month, from about 63°F in the first days to 70°F by the end. The sky is clear or mostly clear about 30% of the time in May, and the air most often feels dry.

Daylight stretches from about 14 h 06 min at the start of May to 15 h 18 min by month's end. Set against the rest of the year, May is Lewiston Orchards's 6th-clearest and 3rd-windiest month. For the whole year in context, see Lewiston Orchards's year-round climate.

Daytime high: 67°; 5th warmest
Overnight low: 46°; 8th coldest
Rainfall: 1.9 in; 8.7 wet days
Daylight: 14 h 48 min; 4:21 AM – 7:07 PM
Cloud cover: 59%; 6th clearest
Wind: 5 mph; 3rd windiest
Solar energy: 6.47 kWh/m²
Travel score: 6.3; out of 10

Lewiston Orchards is human settlement in Nez Perce County, Idaho, United States of America.

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

← April Lewiston Orchards year-round climate June →Best places to visit in May

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

Temperature in May

Average highAverage lowShaded bands: 10–90% of days

Highs climb over the month, from about 63°F in the first days to 70°F by the end.

A typical May day in Lewiston Orchards reaches about 67°F in the afternoon and slips back to 46°F overnight — a 21°F spread between the day's warmth and the night's chill. On most days the high lands between 56°F and 79°F. Set against its neighbours, May runs about 8°F warmer than April and about 7°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)	63	63	63	64	64	64	65	65	65	65	66	66	66	67	67	67	67	68	68	68	68	68	69	69	69	69	70	70	70	70	70
Avg low (°F)	42	42	42	43	43	43	44	44	44	44	45	45	46	46	46	46	47	47	47	47	48	48	48	48	48	49	49	49	49	49	49

	Avg high (°F)	Avg low (°F)
1	63	42
2	63	42
3	63	42
4	64	43
5	64	43
6	64	43
7	65	44
8	65	44
9	65	44
10	65	44
11	66	45
12	66	45
13	66	46
14	67	46
15	67	46
16	67	46
17	67	47
18	68	47
19	68	47
20	68	47
21	68	48
22	68	48
23	69	48
24	69	48
25	69	48
26	69	49
27	70	49
28	70	49
29	70	49
30	70	49
31	70	49

How May really feels in Lewiston Orchards

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.

Days feeling ≥ 90°F

heat index over the day's high

Days feeling ≤ 32°F

wind chill below the day's low

May sits comfortably in between — no days that feel dangerously hot or drop to a hard freeze once humidity and wind are folded in.

Lewiston Orchards weather by month

How May compares with the rest of the year at a glance. May is the 5th-warmest and 7th-wettest month here — the current month is highlighted below.

Month	High / Low (°F)	Rainfall (inches)	Wet days	Snow days	Daylight (hours)	Travel score
Jan	38° / 25°	2.4	12.5	6.4	8.8	0.0
Feb	43° / 28°	2.0	10.5	4.4	10	0.5
Mar	52° / 33°	2.4	11.8	2.5	11.6	2.5
Apr	59° / 39°	2.0	10.2	0.4	13.3	4.4
May	67° / 46°	1.9	8.7	0	14.7	6.3
Jun	74° / 52°	1.2	5.7	0	15.5	7.5
Jul	85° / 59°	0.4	2	0	15.2	6.8
Aug	85° / 59°	0.4	2	0	14	6.8
Sep	75° / 51°	0.7	3.6	0	12.4	8.1
Oct	61° / 41°	1.7	8.1	0.1	10.7	5.3
Nov	46° / 32°	2.5	11.9	2.8	9.2	1.2
Dec	37° / 25°	2.7	13.3	7.4	8.5	0.0

Cloud cover in May

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 30% of the time in May.

Beyond those clear spells, partly cloudy skies cover about 16% of May, 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 (%)	48	47	48	48	48	48	48	47	47	47	46	46	45	46	45	45	45	44	44	45	45	44	45	46	46	47	46	46	47	48	48
Cloudier (%)	52	53	52	52	52	52	52	53	53	53	54	54	55	54	55	55	55	56	56	55	55	56	55	54	54	53	54	54	53	52	52

	Clearer (%)	Cloudier (%)
1	48	52
2	47	53
3	48	52
4	48	52
5	48	52
6	48	52
7	48	52
8	47	53
9	47	53
10	47	53
11	46	54
12	46	54
13	45	55
14	46	54
15	45	55
16	45	55
17	45	55
18	44	56
19	44	56
20	45	55
21	45	55
22	44	56
23	45	55
24	46	54
25	46	54
26	47	53
27	46	54
28	46	54
29	47	53
30	48	52
31	48	52

Chance of precipitation in May

Any precipitation

Lewiston Orchards gets around 1.9 in of rain over 8.7 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 28% and peaks near 31% on the wettest days.

	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 (%)	28	28	28	28	27	27	27	27	27	27	27	28	28	28	29	29	30	30	31	31	31	30	30	29	29	28	28	27	27	26	26

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

Humidity in May

DryComfortableHumidMuggyOppressiveMiserable

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 98% 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 (%)	100	100	100	100	100	100	100	100	100	100	99	99	99	99	99	98	98	98	98	98	97	97	97	97	96	96	96	96	96	96	96
Comfortable (%)	0	0	0	0	0	0	0	0	0	0	1	1	1	1	1	2	2	2	2	2	3	3	3	3	4	4	4	4	4	4	4

	Dry (%)	Comfortable (%)
1	100	0
2	100	0
3	100	0
4	100	0
5	100	0
6	100	0
7	100	0
8	100	0
9	100	0
10	100	0
11	99	1
12	99	1
13	99	1
14	99	1
15	99	1
16	98	2
17	98	2
18	98	2
19	98	2
20	98	2
21	97	3
22	97	3
23	97	3
24	97	3
25	96	4
26	96	4
27	96	4
28	96	4
29	96	4
30	96	4
31	96	4

Wind in May

Winds average 5 mph in May.

Across May, daily wind ranges from about 5 mph on the calmest days to 6 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)	6	6	5	5	5	5	5	5	5	5	5	5	5	5	5	5	5	5	5	5	5	5	5	5	5	5	5	5	5	5	5
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	6	calm
2	6	calm
3	5	calm
4	5	calm
5	5	calm
6	5	calm
7	5	calm
8	5	calm
9	5	calm
10	5	calm
11	5	calm
12	5	calm
13	5	calm
14	5	calm
15	5	calm
16	5	calm
17	5	calm
18	5	calm
19	5	calm
20	5	calm
21	5	calm
22	5	calm
23	5	calm
24	5	calm
25	5	calm
26	5	calm
27	5	calm
28	5	calm
29	5	calm
30	5	calm
31	5	calm

Sunrise & sunset in May

DaylightNight

Daylight runs from about 14 h 06 min at the start of May to 15 h 18 min by month's end. The lit band spans sunrise to sunset each day.

Days grow by about 72 minutes over May. Sunrise moves from 4:42 AM to 4:07 AM, and sunset from 6:48 PM to 7:24 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)	14.1	14.1	14.2	14.2	14.3	14.3	14.4	14.4	14.5	14.5	14.6	14.6	14.7	14.7	14.7	14.8	14.8	14.9	14.9	14.9	15.0	15.0	15.0	15.1	15.1	15.1	15.2	15.2	15.2	15.3	15.3
Sunrise (AM)	4:42	4:41	4:39	4:37	4:36	4:34	4:33	4:31	4:30	4:29	4:27	4:26	4:25	4:23	4:22	4:21	4:20	4:18	4:17	4:16	4:15	4:14	4:13	4:12	4:11	4:10	4:10	4:09	4:08	4:07	4:07
Sunset (PM)	6:48	6:49	6:51	6:52	6:53	6:55	6:56	6:57	6:59	7:00	7:01	7:02	7:04	7:05	7:06	7:07	7:09	7:10	7:11	7:12	7:13	7:15	7:16	7:17	7:18	7:19	7:20	7:21	7:22	7:23	7:24

	Daylight (h)	Sunrise (AM)	Sunset (PM)
1	14.1	4:42	6:48
2	14.1	4:41	6:49
3	14.2	4:39	6:51
4	14.2	4:37	6:52
5	14.3	4:36	6:53
6	14.3	4:34	6:55
7	14.4	4:33	6:56
8	14.4	4:31	6:57
9	14.5	4:30	6:59
10	14.5	4:29	7:00
11	14.6	4:27	7:01
12	14.6	4:26	7:02
13	14.7	4:25	7:04
14	14.7	4:23	7:05
15	14.7	4:22	7:06
16	14.8	4:21	7:07
17	14.8	4:20	7:09
18	14.9	4:18	7:10
19	14.9	4:17	7:11
20	14.9	4:16	7:12
21	15.0	4:15	7:13
22	15.0	4:14	7:15
23	15.0	4:13	7:16
24	15.1	4:12	7:17
25	15.1	4:11	7:18
26	15.1	4:10	7:19
27	15.2	4:10	7:20
28	15.2	4:09	7:21
29	15.2	4:08	7:22
30	15.3	4:07	7:23
31	15.3	4:07	7:24

Solar energy in May

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in May, about 6.47 kWh/m².

For context, solar energy here swings from a low near 1.27 kWh/m² to a high of 7.69 kWh/m² in July across the year — May's 6.47 kWh/m² falls in the middle.

	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)	6.1	6.1	6.2	6.2	6.2	6.3	6.3	6.3	6.3	6.3	6.4	6.4	6.4	6.4	6.4	6.4	6.4	6.4	6.5	6.5	6.5	6.5	6.5	6.6	6.6	6.6	6.6	6.7	6.7	6.7	6.7
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	Intense

	Solar energy (kWh/m²)	Level
1	6.1	Intense
2	6.1	Intense
3	6.2	Intense
4	6.2	Intense
5	6.2	Intense
6	6.3	Intense
7	6.3	Intense
8	6.3	Intense
9	6.3	Intense
10	6.3	Intense
11	6.4	Intense
12	6.4	Intense
13	6.4	Intense
14	6.4	Intense
15	6.4	Intense
16	6.4	Intense
17	6.4	Intense
18	6.4	Intense
19	6.5	Intense
20	6.5	Intense
21	6.5	Intense
22	6.5	Intense
23	6.5	Intense
24	6.6	Intense
25	6.6	Intense
26	6.6	Intense
27	6.6	Intense
28	6.7	Intense
29	6.7	Intense
30	6.7	Intense
31	6.7	Intense

Planning a trip in May

Is May a good time to visit Lewiston Orchards?

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

6.3

Sightseeing

5th-best month of the year

3.0

Beach & pool

5th-best month of the year

May is a reasonable time to visit Lewiston Orchards for sightseeing.

What to pack for Lewiston Orchards in May

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

In May, Lewiston Orchards sees daytime highs around 67°F and nights near 46°F. Pack sun protection. Worth having: a warm layer and rain gear. About 9 days see rain.

sun protectiona warm layerrain gear

UV index in Lewiston Orchards in May

LowModerateHighVery highExtreme

Clear-sky midday UV in May peaks around 7 — enough to warrant sun protection. The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Lewiston Orchards peaks around July 15 at about 9 (very high) — sunscreen, a hat and midday shade are essential. It bottoms out near December 16 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)	1	2	4	5	7	7	9	6	5	4	1	1
Level	Low	Low	Moderate	Moderate	High	High	Very high	High	Moderate	Moderate	Low	Low

	UV index (midday)	Level
Jan	1	Low
Feb	2	Low
Mar	4	Moderate
Apr	5	Moderate
May	7	High
Jun	7	High
Jul	9	Very high
Aug	6	High
Sep	5	Moderate
Oct	4	Moderate
Nov	1	Low
Dec	1	Low

Air quality in Lewiston Orchards in May

GoodModeratePoorUnhealthyVery unhealthy

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

Air quality in Lewiston Orchards is worst in August — around 27 µg/m³ PM2.5 (moderate), about 3.6× the cleanest month (December, 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	9	14	15	11	10	25	27	25	18	17	8
Level	Good	Good	Moderate	Moderate	Good	Good	Moderate	Moderate	Moderate	Moderate	Moderate	Good

	PM2.5 (µg/m³)	Level
Jan	8	Good
Feb	9	Good
Mar	14	Moderate
Apr	15	Moderate
May	11	Good
Jun	10	Good
Jul	25	Moderate
Aug	27	Moderate
Sep	25	Moderate
Oct	18	Moderate
Nov	17	Moderate
Dec	8	Good

Location & terrain

Where is Lewiston Orchards?

Lewiston Orchards sits at 46.4°N, 117.0°W, 1,440 ft above sea level, in United States. The nearest listed city is Lewiston, 3.1 mi away.

Topography around Lewiston Orchards

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

Within 2 miles, the terrain around Lewiston Orchards has only modest variations in elevation — a maximum elevation change of 728 ft around an average of 1,339 ft above sea level; within 10 miles, large variations in elevation — a maximum elevation change of 2,316 ft; within 50 miles, very significant variations in elevation — a maximum elevation change of 5,728 ft.

The land around Lewiston Orchards is covered by grassland (38%) and artificial surfaces (24%) within 2 miles, grassland (53%) and cropland (35%) within 10 miles, and grassland (39%), trees (31%) and cropland (29%) within 50 miles.

2 miles

728 ft

grassland 38%

10 miles

2,316 ft

grassland 53%

50 miles

5,728 ft

grassland 39%

treesgrasslandcroplandartificial surfacesbare terrainwater

← April Lewiston Orchards year-round climate June →Best places to visit in May

May weather nearby: Lewiston 3.1 mi · Moscow 24 mi · Pullman 26 mi · Walla Walla 69 mi · Opportunity 89 mi · Coeur d'Alene 90 mi · Spokane Valley 90 mi · Spokane 91 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 Lewiston Orchards (46.3804°, -116.9754°, elevation 1,440 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	63	42
2	63	42
3	63	42
4	64	43
5	64	43
6	64	43
7	65	44
8	65	44
9	65	44
10	65	44
11	66	45
12	66	45
13	66	46
14	67	46
15	67	46
16	67	46
17	67	47
18	68	47
19	68	47
20	68	47
21	68	48
22	68	48
23	69	48
24	69	48
25	69	48
26	69	49
27	70	49
28	70	49
29	70	49
30	70	49
31	70	49

	Clearer (%)	Cloudier (%)
1	48	52
2	47	53
3	48	52
4	48	52
5	48	52
6	48	52
7	48	52
8	47	53
9	47	53
10	47	53
11	46	54
12	46	54
13	45	55
14	46	54
15	45	55
16	45	55
17	45	55
18	44	56
19	44	56
20	45	55
21	45	55
22	44	56
23	45	55
24	46	54
25	46	54
26	47	53
27	46	54
28	46	54
29	47	53
30	48	52
31	48	52

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

	Dry (%)	Comfortable (%)
1	100	0
2	100	0
3	100	0
4	100	0
5	100	0
6	100	0
7	100	0
8	100	0
9	100	0
10	100	0
11	99	1
12	99	1
13	99	1
14	99	1
15	99	1
16	98	2
17	98	2
18	98	2
19	98	2
20	98	2
21	97	3
22	97	3
23	97	3
24	97	3
25	96	4
26	96	4
27	96	4
28	96	4
29	96	4
30	96	4
31	96	4

	Avg high (°F)	Avg low (°F)
1	63	42
2	63	42
3	63	42
4	64	43
5	64	43
6	64	43
7	65	44
8	65	44
9	65	44
10	65	44
11	66	45
12	66	45
13	66	46
14	67	46
15	67	46
16	67	46
17	67	47
18	68	47
19	68	47
20	68	47
21	68	48
22	68	48
23	69	48
24	69	48
25	69	48
26	69	49
27	70	49
28	70	49
29	70	49
30	70	49
31	70	49

	Clearer (%)	Cloudier (%)
1	48	52
2	47	53
3	48	52
4	48	52
5	48	52
6	48	52
7	48	52
8	47	53
9	47	53
10	47	53
11	46	54
12	46	54
13	45	55
14	46	54
15	45	55
16	45	55
17	45	55
18	44	56
19	44	56
20	45	55
21	45	55
22	44	56
23	45	55
24	46	54
25	46	54
26	47	53
27	46	54
28	46	54
29	47	53
30	48	52
31	48	52

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

	Dry (%)	Comfortable (%)
1	100	0
2	100	0
3	100	0
4	100	0
5	100	0
6	100	0
7	100	0
8	100	0
9	100	0
10	100	0
11	99	1
12	99	1
13	99	1
14	99	1
15	99	1
16	98	2
17	98	2
18	98	2
19	98	2
20	98	2
21	97	3
22	97	3
23	97	3
24	97	3
25	96	4
26	96	4
27	96	4
28	96	4
29	96	4
30	96	4
31	96	4

	Avg high (°F)	Avg low (°F)
1	63	42
2	63	42
3	63	42
4	64	43
5	64	43
6	64	43
7	65	44
8	65	44
9	65	44
10	65	44
11	66	45
12	66	45
13	66	46
14	67	46
15	67	46
16	67	46
17	67	47
18	68	47
19	68	47
20	68	47
21	68	48
22	68	48
23	69	48
24	69	48
25	69	48
26	69	49
27	70	49
28	70	49
29	70	49
30	70	49
31	70	49

	Clearer (%)	Cloudier (%)
1	48	52
2	47	53
3	48	52
4	48	52
5	48	52
6	48	52
7	48	52
8	47	53
9	47	53
10	47	53
11	46	54
12	46	54
13	45	55
14	46	54
15	45	55
16	45	55
17	45	55
18	44	56
19	44	56
20	45	55
21	45	55
22	44	56
23	45	55
24	46	54
25	46	54
26	47	53
27	46	54
28	46	54
29	47	53
30	48	52
31	48	52

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

	Dry (%)	Comfortable (%)
1	100	0
2	100	0
3	100	0
4	100	0
5	100	0
6	100	0
7	100	0
8	100	0
9	100	0
10	100	0
11	99	1
12	99	1
13	99	1
14	99	1
15	99	1
16	98	2
17	98	2
18	98	2
19	98	2
20	98	2
21	97	3
22	97	3
23	97	3
24	97	3
25	96	4
26	96	4
27	96	4
28	96	4
29	96	4
30	96	4
31	96	4