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SunnyDays

ERA5 almanac — 8 years of real data

Where is it warm in July?

Ranked by historical clear-sky percentage from the ERA5 reanalysis (2018–2025, 55 destinations). Palm Springs Desert leads with 99% historically clear days in this month (n=248). Every percentage below has its sample size beside it.

What you are reading: 8-year historical averages, not a forecast. A destination that is historically 90% clear in July can still be overcast this specific July. For this week’s actual forecast, each destination links to its live page.
55 destinations ranked by average clear-sky days in July, ERA5 2018–2025. “n” is the number of days sampled.
# Destination Early July
(1st–15th, n)
Late July
(16th–end, n)
Month avg Avg high Verdict
1 Palm Springs Desert CA 100% (n=120) 98% (n=128) 99% 110°F Palm Springs Desert is historically one of the clearest places in this month: 99% of days meet the clear bar on average across 8 years (n=248).
2 Napa CA 98% (n=120) 98% (n=128) 98% 86°F Napa is historically one of the clearest places in this month: 98% of days meet the clear bar on average across 8 years (n=248).
3 Palm Springs CA 98% (n=120) 98% (n=128) 98% 108°F Palm Springs is historically one of the clearest places in this month: 98% of days meet the clear bar on average across 8 years (n=248).
4 Palm Desert CA 100% (n=120) 94% (n=128) 97% 109°F Palm Desert is historically one of the clearest places in this month: 97% of days meet the clear bar on average across 8 years (n=248).
5 Los Angeles CA 98% (n=120) 94% (n=128) 96% 88°F Los Angeles is historically one of the clearest places in this month: 96% of days meet the clear bar on average across 8 years (n=248).
6 Wine Country Sonoma CA 97% (n=120) 96% (n=128) 96% 86°F Wine Country Sonoma is historically one of the clearest places in this month: 96% of days meet the clear bar on average across 8 years (n=248).
7 Santa Barbara CA 91% (n=120) 95% (n=128) 93% 84°F Santa Barbara is historically one of the clearest places in this month: 93% of days meet the clear bar on average across 8 years (n=248).
8 Moab UT 93% (n=120) 88% (n=128) 90% 98°F Moab is historically one of the clearest places in this month: 90% of days meet the clear bar on average across 8 years (n=248).
9 Las Vegas NV 94% (n=120) 83% (n=128) 88% 107°F Las Vegas is historically one of the clearest places in this month: 88% of days meet the clear bar on average across 8 years (n=248).
10 San Diego CA 82% (n=120) 94% (n=128) 88% 76°F San Diego is historically one of the clearest places in this month: 88% of days meet the clear bar on average across 8 years (n=248).
11 Lake Tahoe CA 88% (n=120) 82% (n=128) 85% 81°F Lake Tahoe is historically one of the clearest places in this month: 85% of days meet the clear bar on average across 8 years (n=248).
12 San Luis Obispo CA 72% (n=120) 82% (n=128) 77% 78°F San Luis Obispo clears solidly in this month — 77% of days on average across 8 years (n=248), avg high 78°F.
13 Phoenix AZ 88% (n=120) 65% (n=128) 76% 107°F Phoenix clears solidly in this month — 76% of days on average across 8 years (n=248), avg high 107°F.
14 Scottsdale AZ 87% (n=120) 66% (n=128) 76% 107°F Scottsdale clears solidly in this month — 76% of days on average across 8 years (n=248), avg high 107°F.
15 Scottsdale Desert Ridge AZ 83% (n=120) 70% (n=128) 76% 105°F Scottsdale Desert Ridge clears solidly in this month — 76% of days on average across 8 years (n=248), avg high 105°F.
16 Newport Beach CA 61% (n=120) 80% (n=128) 71% 75°F Newport Beach clears solidly in this month — 71% of days on average across 8 years (n=248), avg high 75°F.
17 Albuquerque NM 74% (n=120) 62% (n=128) 68% 93°F Albuquerque clears solidly in this month — 68% of days on average across 8 years (n=248), avg high 93°F.
18 Sedona AZ 77% (n=120) 52% (n=128) 64% 94°F Sedona clears solidly in this month — 64% of days on average across 8 years (n=248), avg high 94°F.
19 Jackson Hole WY 58% (n=120) 66% (n=128) 62% 81°F Jackson Hole clears solidly in this month — 62% of days on average across 8 years (n=248), avg high 81°F.
20 Marfa TX 52% (n=120) 69% (n=128) 61% 91°F Marfa clears solidly in this month — 61% of days on average across 8 years (n=248), avg high 91°F.
21 Tucson AZ 66% (n=120) 49% (n=128) 57% 100°F Tucson is mixed in this month: clear 57% of days historically (n=248), avg high 100°F. Check the halves — the split can be wide.
22 Taos NM 52% (n=120) 45% (n=128) 48% 85°F Taos is mixed in this month: clear 48% of days historically (n=248), avg high 85°F. Check the halves — the split can be wide.
23 Austin TX 41% (n=120) 52% (n=128) 47% 95°F Austin is mixed in this month: clear 47% of days historically (n=248), avg high 95°F. Check the halves — the split can be wide.
24 Dallas TX 32% (n=120) 62% (n=128) 47% 96°F Dallas is mixed in this month: clear 47% of days historically (n=248), avg high 96°F. Check the halves — the split can be wide.
25 San Antonio TX 38% (n=120) 50% (n=128) 44% 95°F San Antonio is mixed in this month: clear 44% of days historically (n=248), avg high 95°F. Check the halves — the split can be wide.
26 Aspen CO 43% (n=120) 43% (n=128) 43% 80°F Aspen is mixed in this month: clear 43% of days historically (n=248), avg high 80°F. Check the halves — the split can be wide.
27 Park City UT 45% (n=120) 38% (n=128) 41% 81°F Park City is mixed in this month: clear 41% of days historically (n=248), avg high 81°F. Check the halves — the split can be wide.
28 Santa Fe NM 44% (n=120) 38% (n=128) 41% 83°F Santa Fe is mixed in this month: clear 41% of days historically (n=248), avg high 83°F. Check the halves — the split can be wide.
29 Vail CO 44% (n=120) 29% (n=128) 36% 78°F Vail is mostly overcast this month historically: only 36% of days clear on average across 8 years (n=248), avg high 78°F.
30 Outer Banks NC 32% (n=120) 38% (n=128) 35% 82°F Outer Banks is mostly overcast this month historically: only 35% of days clear on average across 8 years (n=248), avg high 82°F.
31 Big Sur CA 29% (n=120) 22% (n=128) 25% 69°F Big Sur is mostly overcast this month historically: only 25% of days clear on average across 8 years (n=248), avg high 69°F. Try August
32 Charlotte NC 23% (n=120) 21% (n=128) 22% 90°F Charlotte is mostly overcast this month historically: only 22% of days clear on average across 8 years (n=248), avg high 90°F. Try September
33 Asheville NC 24% (n=120) 18% (n=128) 21% 84°F Asheville is mostly overcast this month historically: only 21% of days clear on average across 8 years (n=248), avg high 84°F. Try September
34 Houston TX 13% (n=120) 29% (n=128) 21% 91°F Houston is mostly overcast this month historically: only 21% of days clear on average across 8 years (n=248), avg high 91°F. Try October
35 Nashville TN 24% (n=120) 14% (n=128) 19% 89°F Nashville is poor for sun this month: just 19% of days clear historically (n=248). The 8-year record says to look elsewhere. Try September
36 Key West FL 19% (n=120) 16% (n=128) 17% 86°F Key West is poor for sun this month: just 17% of days clear historically (n=248). The 8-year record says to look elsewhere. Try March
37 Hilton Head SC 13% (n=120) 16% (n=128) 15% 88°F Hilton Head is poor for sun this month: just 15% of days clear historically (n=248). The 8-year record says to look elsewhere. Try October
38 Savannah GA 13% (n=120) 14% (n=128) 14% 90°F Savannah is poor for sun this month: just 14% of days clear historically (n=248). The 8-year record says to look elsewhere. Try October
39 Sea Island GA 12% (n=120) 16% (n=128) 14% 87°F Sea Island is poor for sun this month: just 14% of days clear historically (n=248). The 8-year record says to look elsewhere. Try October
40 Charleston SC 11% (n=120) 13% (n=128) 12% 88°F Charleston is poor for sun this month: just 12% of days clear historically (n=248). The 8-year record says to look elsewhere. Try October
41 Amelia Island FL 7% (n=120) 13% (n=128) 10% 88°F Amelia Island is poor for sun this month: just 10% of days clear historically (n=248). The 8-year record says to look elsewhere. Try April
42 Gulf Shores AL 12% (n=120) 7% (n=128) 9% 87°F Gulf Shores is poor for sun this month: just 9% of days clear historically (n=248). The 8-year record says to look elsewhere. Try October
43 Panama City Beach FL 9% (n=120) 9% (n=128) 9% 86°F Panama City Beach is poor for sun this month: just 9% of days clear historically (n=248). The 8-year record says to look elsewhere. Try October
44 St. Augustine FL 8% (n=120) 10% (n=128) 9% 87°F St. Augustine is poor for sun this month: just 9% of days clear historically (n=248). The 8-year record says to look elsewhere. Try April
45 Jacksonville FL 4% (n=120) 11% (n=128) 8% 90°F Jacksonville is poor for sun this month: just 8% of days clear historically (n=248). The 8-year record says to look elsewhere. Try April
46 Kiawah Island SC 8% (n=120) 7% (n=128) 7% 87°F Kiawah Island is poor for sun this month: just 7% of days clear historically (n=248). The 8-year record says to look elsewhere. Try October
47 Miami FL 3% (n=120) 8% (n=128) 6% 88°F Miami is poor for sun this month: just 6% of days clear historically (n=248). The 8-year record says to look elsewhere. Try March
48 Palm Beach FL 2% (n=120) 9% (n=128) 6% 87°F Palm Beach is poor for sun this month: just 6% of days clear historically (n=248). The 8-year record says to look elsewhere. Try March
49 Fort Lauderdale FL 4% (n=120) 5% (n=128) 5% 88°F Fort Lauderdale is poor for sun this month: just 5% of days clear historically (n=248). The 8-year record says to look elsewhere. Try March
50 Sarasota FL 9% (n=120) 2% (n=128) 5% 87°F Sarasota is poor for sun this month: just 5% of days clear historically (n=248). The 8-year record says to look elsewhere. Try April
51 Destin FL 3% (n=120) 5% (n=128) 4% 88°F Destin is historically very rarely clear this month: only 4% of days meet the clear bar across 8 years (n=248). Plan for clouds. Try October
52 Naples FL 3% (n=120) 4% (n=128) 4% 89°F Naples is historically very rarely clear this month: only 4% of days meet the clear bar across 8 years (n=248). Plan for clouds. Try March
53 Orlando FL 2% (n=120) 2% (n=128) 2% 88°F Orlando is historically very rarely clear this month: only 2% of days meet the clear bar across 8 years (n=248). Plan for clouds. Try March
54 Tampa FL 3% (n=120) 1% (n=128) 2% 89°F Tampa is historically very rarely clear this month: only 2% of days meet the clear bar across 8 years (n=248). Plan for clouds. Try April
55 Carmel-by-the-Sea CA 1% (n=120) 1% (n=128) 1% 63°F Carmel-by-the-Sea is historically very rarely clear this month: only 1% of days meet the clear bar across 8 years (n=248). Plan for clouds. Try October

Honest note on the bottom of this list: Carmel-by-the-Sea is historically 1% clear in July (n=248 days). That is not a soft number — it means roughly 1 days out of every 100 historically meet our clear bar here in this month. If you want Carmel-by-the-Sea, try October instead.

Every month

All percentages are historical averages from the ERA5 reanalysis via Open-Meteo, 8 full years (2018–2025). “Clear” means avg high ≥ 72 °F, precipitation < 1 mm, and a non-precipitation weather code. This is history, not a forecast. The live 7-day outlook for any destination is on its own page and may differ from the long-run average. Data from Open-Meteo.