Is Billings sunnier than Rapid City?

Rapid City is the sunnier: about 2,793 hours of sunshine a year versus 2,701 — a difference of 92 hours.

Which is warmer, Billings or Rapid City?

Rapid City is warmer across the year: average daytime highs of 17°C (63°F) versus 15°C.

Which is better in winter (November–February), Billings or Rapid City?

They are close in the November–February window: Billings averages 0/100 (about 4°C days), Rapid City 2/100 (about 5°C).

Billings vs Rapid City: which is sunnier?

🇺🇸 United States vs 🇺🇸 United States · 474 km apart · long-term climate normals (NASA POWER, 2001–2020)

Rapid City is the sunnier overall: about 2,793 hours of sunshine a year to Billings's 2,701. Rapid City has the higher Sunshine Score in 4 of 12 months, Billings in 1 (7 within 2 points).

Scores are the 0–100 Sunshine Score — sunshine, daytime warmth and dryness in one number, per month.

At a glance

	Billings	Rapid City
Sunshine hours / year	2,701	2,793
Sunniest month	July (89/100)	September (88/100)
Nov–Feb average score	0/100	2/100
Jun–Aug average score	87/100	82/100
Rain / year	430 mm	451 mm
Peak midday UV	8 (very high)	8 (very high)

Billings vs Rapid City month by month

Month	Sunshine Score		Day high °C		Rain mm
Month	Billings	Rapid City	Billings	Rapid City	Billings	Rapid City
January	0	0	2°	4°	16	9
February	0	0	3°	4°	19	14
March	8	23	9°	11°	25	24
April	43	57	14°	16°	47	52
May	81	80	20°	21°	78	87
June	83	83	26°	29°	65	68
July	89	77	32°	33°	32	55
August	89	87	30°	31°	33	48
September	88	88	24°	26°	37	38
October	51	60	15°	16°	41	33
November	0	8	7°	9°	19	12
December	0	0	2°	3°	18	11

The sunnier month by month: Jan even · Feb even · Mar Rapid City · Apr Rapid City · May even · Jun even · Jul Billings · Aug even · Sep even · Oct Rapid City · Nov Rapid City · Dec even.

When to pick which

November–February: too close to call — Billings averages 0/100, Rapid City 2/100. Daytime highs are similar (4°C vs 5°C). See the winter sun ranking.
March–May: Rapid City (average score 53/100 vs 44). Rapid City is the warmer, around 16°C daytime highs vs 14°C.
June–August: Billings (average score 87/100 vs 82). Rapid City is the warmer, around 31°C daytime highs vs 29°C.
September–October: Rapid City (average score 74/100 vs 70). Daytime highs are similar (20°C vs 21°C).

Full month-by-month guides: Billings weather by month · Rapid City weather by month · Best time to visit United States.

More comparisons: Billings vs Great Falls · Billings vs Bozeman · Billings vs Jackson · Rapid City vs Denver · Rapid City vs Bismarck · all head-to-heads