The hottest, coldest, wettest and snowiest days Mary has
recorded — the outer limits of what its weather can do, and how far
they sit beyond a normal day.
Based on 20 years of daily weather observations (2005–present), from the Mary station 7 km away. Updated through August 2025 — an all-time extreme only changes when a more extreme day actually occurs, so some dates are old. That is normal, not stale data.
The four kinds of extreme
The hottest, coldest, wettest and snowiest single days Mary
has recorded — each shown against what a normal day that time of year
looks like.
🔥Hottest day
115°FJul 20, 2019
The three most extreme on record
1115°FJul 20, 2019
2115°FJul 6, 2021
3113°FJul 15, 2010
❄️Coldest night
-8°FJan 25, 2008
The three most extreme on record
1-8°FJan 25, 2008
2-6°FJan 23, 2008
3-6°FJan 13, 2023
🌧️Most rain in one day
0.10 inJul 23, 2021
Top recorded days
10.10 inJul 23, 2021recent
In plain terms
Across the record, Mary has reached as high as 115°F and as low as −8°F. A single day has delivered over 0 inches of rain. Those are the outer edges worth knowing if you are moving here, planning a trip, or thinking about a house.
Methodology & sources
Temperature & precipitation — modelled for this location from ERA5-Land reanalysis, a ~9 km global grid, because no long-record weather station is close enough to use.