Salem has warmed about 1.3°F between 1973 and 2024.
About 0.3°F per decade, measured from Salem's official daily weather records, 1973–2024. Individual years still bounce around — some recent ones came in cool — but the long-term line has clearly risen.
Is that a lot? Salem's warming is broadly in line with other cities in India — 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
about the same
1970s
0 / yr
→
Recent
0 / yr
Winters about as cold as before
Average temperature
+0.9°F
1970s
83.8°F
→
Recent
84.6°F
A steady upward drift
Hot days above 90°F
5 fewer days
1970s
205 / yr
→
Recent
200 / yr
Slightly fewer hot days
Rainy days
20 more days
1970s
43 / yr
→
Recent
63 / yr
Wetter on average
Salem's temperature, year by year
Average temperature for each year from 1973 to 2024.
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.
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.
January has warmed the most — about 1.0°F. The warming runs across the whole year, not just one season.
Methodology & sources
Temperature — 1991–2020 normals computed from 27 years of daily observations at Tiruchchirapalli, a weather station, about 116 km from the city centre. The underlying daily records come from NOAA's global station network.