Climate Change Chart of Haifa, Israel

Overview of climate changes

Temperature changes

Monthly mean temperature shows an average difference of +0.94 °C across calendar months in the more recent period. This is an unweighted average of monthly means, not a day-weighted annual average, and it describes mean temperatures rather than daytime highs. The largest monthly increase was in September, with a difference of +1.37 °C compared with the earlier reference period; this identifies the strongest increase among the monthly mean-temperature differences, not a uniform change in every month.

Changes in rainfall

Averaged across calendar months, mean daily rainfall had a difference of -0.07 mm/day in the more recent period. This is an unweighted mean of monthly differences in daily amounts, rather than a day-weighted annual measure or a monthly rainfall total. The monthly pattern was not uniform: February had the largest increase, a difference of +0.39 mm/day, while March had the largest decrease, a difference of -0.84 mm/day. These describe changes in mean daily rainfall for those months, not totals accumulated over the month.

Changes in sunshine duration

Mean daily sunshine duration averaged across calendar months had a difference of -0.11 hours/day compared with the earlier reference period. This unweighted mean summarizes monthly mean daily hours; it is not a day-weighted annual total. Monthly differences varied: the largest decrease was in March, at -0.30 hours/day, while the largest increase was in May, at +0.03 hours/day. These values refer to mean daily sunshine duration in each named month.

Changes in snowfall

Averaged across calendar months, mean daily snowfall had a difference of 0.00 mm/day at the displayed precision. This rounded average does not establish that snowfall was absent or that finer-precision differences were zero. The monthly differences included an increase in January of +0.01 mm/day and a decrease in February of -0.03 mm/day. These are differences in mean daily snowfall, not monthly totals, and show that the rounded mean can mask opposing month-specific changes.