warm winter in jesus land

so many Christians in America are interested in the land where jesus walked. and taught.
so here is the situation there.
as autumn now ends the length of sun-time lessens... total length around ten hours sun per day and less each day until December 23 at that day slightly more added sunlight and from then additional sun each day of winter... as winter begins and despite the added sun each day the cold increases which relative to america [the country with that inside the name]  is still quite warm!
the coldest in January in jesus land, which is called "Israel" in the greek letters  of the new testament are the cold winter nights 48 degrees f. [=9c.] relatively warm for a winter night!
days are mostly 65d-f. compared to America warmer yet slight chill.
what I find surprising is that the added sun time in winter does not add warmth instead despite more sun which INCREASES each day when winter begins and throughout January yet despite each day has more sun still the heat lessens from the beginning of winter:
day 67d.f. =19d.c. cooling to 66 and cooler 65 in January despite increases in sun.
similarly cold nights 52d.f. =11d.c. cooling to 51 and then cold January nights mostly 48d.f.
data: temp december f72>68d fast cooling to 66f.d. but n55>50f.
cn. trend of cooling [end nov d23 n14>13] then d.d.22-21 n13 then d20 n12 then d19 n11
ja.f-d66-65 but most 65d. n mostly 48+49 at the coldest and warming again
cn. now coldest avj cuz most of the month d18, n10-9