The hottest, coldest, wettest and snowiest days Mazatenango 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 Retalhuleu station 21 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 Mazatenango
has recorded — each shown against what a normal day that time of year
looks like.
🔥Hottest day
100°FApr 16, 2019
The three most extreme on record
1100°FApr 16, 2019
2100°FAug 22, 2022
3100°FApr 16, 2024
❄️Coldest night
61°FAug 22, 2020
The three most extreme on record
161°FAug 22, 2020
263°FFeb 6, 2009
363°FDec 18, 2010
🌧️Most rain in one day
6.17 inSep 5, 2010
The three most extreme on record
16.17 inSep 5, 2010
22.46 inMay 17, 2018
32.04 inAug 23, 2021
In plain terms
Across the record, Mazatenango has reached as high as 100°F and as low as 61°F. A single day has delivered over 6 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 — the official 1991–2020 climate normals from CONAGUA / SMN, Mexico's national weather service, measured at Ignacio Lopez Rayon, about 74 km from the city centre.