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Has the climate in Rasht changed?

Rasht has warmed about 3.4°F since 1991.

About 1.0°F per decade, measured from Rasht's official daily weather records, 1991–2025. Individual years still bounce around — some recent ones came in cool — but the long-term line has clearly risen.

Is that a lot? Rasht's warming is broadly in line with other cities in Iran — neither unusually fast nor unusually slow.

What has actually changed

Each card compares the 1970s (the first ten years of the record) with recent years (the last ten) — the same span the headline and the chart use.

Freezing nights
1 more night
1970s
0 / yr
Recent
1 / yr
Colder winters — more frosts
Average temperature
+2.2°F
1970s
61.5°F
Recent
63.6°F
A steady upward drift
Hot days above 90°F
35 more days
1970s
1 / yr
Recent
36 / yr
More days of serious heat
Rainy days
51 more days
1970s
48 / yr
Recent
99 / yr
Wetter on average

Rasht's temperature, year by year

Average temperature for each year from 1991 to 2025.

57°59°61°63°65°1991: 61.7°F1992: 59.1°F1993: 58.7°F1994: 60.0°F1995: 62.1°F1996: 61.3°F1997: 61.5°F1998: 62.8°F1999: 62.6°F2000: 63.2°F2001: 63.0°F2002: 62.3°F2004: 62.4°F2005: 62.6°F2006: 62.4°F2007: 62.4°F2008: 61.7°F2009: 61.7°F2010: 64.4°F2011: 61.4°F2012: 63.2°F2013: 62.9°F2014: 62.8°F2015: 63.2°F2016: 62.3°F2017: 63.2°F2018: 63.8°F2019: 64.0°F2020: 63.2°F2021: 64.3°F2022: 64.2°F2023: 64.9°F2024: 64.1°F2025: 63.0°Flong-term trend19912000201020202025
a warmer-than-average year a cooler-than-average year

Each bar is one year. Most recent years sit above the older ones. Some recent years still came in cool — warming is a slope, not a straight climb.

In day-to-day terms, that long-term shift shows up as about 7 more days above 90°F compared with the 1970s.

When in the year the change shows up

How much warmer each month is now than in the 1970s. Useful if you garden or care about a particular season — otherwise the headline above already has the answer.

-1.0°-0.5°0.0°+0.5°+1.0°+1.5°+2.0°+2.5°+3.0°+3.5°+4.0°+4.5°+5.0°+5.5°January: +1.9°F+1.9JFebruary: +1.0°F+1.0FMarch: +2.0°F+2.0MApril: +0.3°F+0.3AMay: +2.7°F+2.7MJune: +5.1°F+5.1JJuly: +2.8°F+2.8JAugust: +2.8°F+2.8ASeptember: +2.4°F+2.4SOctober: +1.3°F+1.3ONovember: -0.7°F-0.7NDecember: +0.6°F+0.6D

June has warmed the most — about 5.1°F. The warming runs across the whole year, not just one season.

Methodology & sources

Temperature — modelled for this location from ERA5-Land reanalysis, a ~9 km global grid, because no long-record weather station is close enough to use.

How we build these numbers →