Is Monterrey sunnier than McAllen?

Monterrey is the sunnier: about 3,056 hours of sunshine a year versus 2,689 — a difference of 367 hours.

Which is warmer, Monterrey or McAllen?

Year-round daytime highs are similar: Monterrey averages 30°C (86°F), McAllen 30°C (86°F).

Which is better in winter (November–February), Monterrey or McAllen?

Monterrey scores better across November–February: 93/100 average versus 90, with daytime highs around 23°C.

Monterrey vs McAllen: which is sunnier?

🇲🇽 Mexico vs 🇺🇸 United States · 192 km apart · long-term climate normals (NASA POWER, 2001–2020)

Monterrey is the sunnier overall: about 3,056 hours of sunshine a year to McAllen's 2,689. Monterrey has the higher Sunshine Score in 7 of 12 months, McAllen in 4 (1 within 2 points).

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

At a glance

	Monterrey	McAllen
Sunshine hours / year	3,056	2,689
Sunniest month	February (94/100)	February (91/100)
Nov–Feb average score	93/100	90/100
Jun–Aug average score	48/100	53/100
Rain / year	638 mm	604 mm
Peak midday UV	10 (very high)	10 (very high)

Monterrey vs McAllen month by month

Month	Sunshine Score		Day high °C		Rain mm
Month	Monterrey	McAllen	Monterrey	McAllen	Monterrey	McAllen
January	93	90	21°	22°	20	24
February	94	91	25°	25°	15	20
March	93	90	29°	29°	24	27
April	81	89	33°	32°	40	34
May	52	68	36°	34°	59	53
June	43	49	37°	36°	61	71
July	49	57	36°	35°	87	75
August	52	52	36°	36°	53	42
September	70	63	32°	33°	178	134
October	87	84	30°	31°	55	57
November	93	88	25°	27°	25	38
December	93	89	22°	23°	21	29

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

When to pick which

November–February: Monterrey (average score 93/100 vs 90). Daytime highs are similar (23°C vs 24°C). See the winter sun ranking.
March–May: McAllen (average score 82/100 vs 75). Daytime highs are similar (33°C vs 32°C).
June–August: McAllen (average score 53/100 vs 48). Daytime highs are similar (36°C vs 36°C).
September–October: Monterrey (average score 79/100 vs 74). Daytime highs are similar (31°C vs 32°C).

Full month-by-month guides: Monterrey weather by month · McAllen weather by month · Best time to visit Mexico · Best time to visit United States.

More comparisons: Monterrey vs Torreón · Monterrey vs Reynosa · Monterrey vs Harlingen · McAllen vs Reynosa · McAllen vs Corpus Christi · McAllen vs Harlingen · all head-to-heads