St. Ignatius, MT vs Phoenix, AZ

Side-by-side comparison of monthly climate normals (NOAA 1991-2020).

St. Ignatius is cooler than Phoenix (47.7°F vs 72.5°F annual avg) and wetter than it (16.7 in vs 8.9 in per year). St. Ignatius has a Warm-summer humid continental climate; Phoenix a Desert (hot) climate.

St. Ignatius, MT

Annual avg
47.7°F
Annual precip
16.7 in
Warmest month
July (86.0°F)
Coldest month
February (22.3°F)
Annual swing
39.6°F
Warm-summer humid continental Dfb USDA Zone 7b

Phoenix, AZ

Annual avg
72.5°F
Annual precip
8.9 in
Warmest month
July (104.0°F)
Coldest month
December (42.7°F)
Annual swing
39.1°F
Pleasant months
2 / 12
Desert (hot) BWh USDA Zone 9b

Best months to visit each city

St. Ignatius

J
F
M
A
M
J
J
A
S
O
N
D

Phoenix

J
F
M
A
M
J
J
A
S
O
N
D

Month-by-month comparison

Month St. Ignatius Phoenix
High Low Precip High Low Precip
January 36.8°F 22.6°F 0.95 in 65.4°F 44.1°F 1.17 in
February 39.9°F 22.3°F 1.15 in 68.1°F 46.1°F 1.21 in
March 50.6°F 28.0°F 0.94 in 75.0°F 50.9°F 1.09 in
April 59.4°F 33.9°F 1.75 in 82.5°F 56.6°F 0.35 in
May 68.6°F 41.0°F 2.30 in 91.5°F 64.7°F 0.19 in
June 75.1°F 46.7°F 2.63 in 101.5°F 72.7°F 0.03 in
July 86.0°F 52.2°F 0.97 in 104.0°F 80.8°F 0.81 in
August 85.8°F 50.7°F 1.17 in 102.5°F 80.5°F 0.96 in
September 74.8°F 44.1°F 1.51 in 97.5°F 74.7°F 0.71 in
October 59.3°F 34.6°F 1.28 in 86.3°F 62.7°F 0.67 in
November 44.8°F 27.5°F 1.13 in 74.0°F 50.8°F 0.90 in
December 36.5°F 22.5°F 0.94 in 63.9°F 42.7°F 0.81 in
St. Ignatius overview
Full climate profile
 Phoenix overview
Full climate profile