[lowfighter]

Not sure but try copying the "month" and "declin" settings present in smolensk load.ini and paste them over the ones present in italy load.ini (for example). Ok, not sure if you're familiar with it so:
create a folder inside your il2 root directory:
mods/mapmods/maps/italy_df/
Now you need to place the italy load.ini inside this folder.

Below I paste the content of this load.ini. Copy the text and paste it into notepad. Save as "load.ini" inside mods/mapmods/maps/italy_df/

[MAP]
ColorMap = map_c.tga
HeightMap = map_h.tga
SmallMap = map_M.tga
TypeMap = map_T.tga
FarMap = map_F.tga
ReflMap = map_R.tga

[LIGHT]
LandLight = LandLight.mat
CloudShadows = CloudShadows.mat

[MAP2D]
ed_m01.tga
ed_m02.tga
ed_m03.tga
;map_ed.tga


[WORLDPOS]
CAMOUFLAGE = SUMMER
MONTH = 4
DECLIN = 41
PRESSURE = 745
TEMPERATURE = 20

[CUBE]
Down = Cube_bott.tga
East = Cube_right.tga
North = Cube_front.tga
South = Cube_back.tga
Up = Cube_top.tga
West = Cube_left.tga

[static]
actors.static

[text]
texts.txt

[WOOD]
Wood0 = Italy_DF/forest/summer/itawood0.tga
Wood1 = Italy_DF/forest/summer/itawood1.tga
Wood2 = Italy_DF/forest/summer/itawood2.tga
Wood3 = Italy_DF/forest/summer/itawood3.tga
Wood4 = Italy_DF/forest/summer/itawood4.tga
WoodMask2 = forest/summer/forestMask.tga
WoodMask3 = forest/summer/forestMask2.tga
WoodMiniMasks = forest/summer/MiniMask.tga
SideWood = forest/summer/ForestSide.tga

[APPENDIX]
HighClouds = Clouds256.tga
HighCloudsNoise = CloudsNoise.tga
// CloudsMap = CloudMap4x4km.tga
Moon = Moon\Moon0000.tga
ShadeNoise = land/Noise.tga
WaterNoise = water/WaterNoise.tga
WaterNoiseAnimStart = Water/Animated/WaterNoise00.tga
ForestNoise= forest/summer/ListForestNoise.tga
BeachFoam = water/Foam.tga
BeachSurf = water/BeachSurf.tga
BeachLand = water/RiverLand.tga
Tree0 = Trees\AlteredBush8a.tga
TreeLightMask = Trees\LightM256.tga

[WATER]
Water = Italy_DF/water/ItalyWater.tga
WaterColorATI = 0.140 0.175 0.230
//WaterColorATI = 0.150 0.225 0.180
WaterColorNV = 0.140 0.185 0.268
//WaterColorNV = 0.165 0.264 0.233


[ROADS]
Rail = land/summer/Rail
Road = land/summer/Road
Highway = land/summer/Highway

[FIELDS]
LowLand0 = Italy_DF/land/summer/LowLand_2neu.tga
LowLand1 = Italy_DF/land/summer/fields_handfields_med.tga,2
LowLand2 = Italy_DF/land/summer/FIELDS2_med.TGA,2
LowLand3 = Italy_DF/land/summer/fields_v2.tga,2
MidLand0 = Italy_DF/land/summer/macchia_neu4.tga,2
MidLand1 = Italy_DF/land/summer/dryland.tga,2
MidLand2 = Italy_DF/land/summer/dry1.tga,2
MidLand3 = Italy_DF/land/summer/macchia_neu3.tga,2
Mount0 = Italy_DF/land/summer/macchia_neu5.tga,2
Mount1 = Italy_DF/land/summer/grass_macchia_rock_v2.tga,2
Mount2 = Italy_DF/land/summer/bigcountry_dry2.tga
Mount3 = Italy_DF/land/summer/mount_top2.tga,2
Country0 = Italy_DF/land/summer/bigcountry.tga
Country1 = Italy_DF/land/summer/fields_dry2.tga,2
Country2 = Italy_DF/land/summer/dryland.tga,2
Country3 = Italy_DF/land/summer/fields_drygreen.tga,2
City0 = Italy_DF/land/summer/MidCity.tga
City1 = Italy_DF/land/summer/DownCity_dry.tga
City2 = Italy_DF/land/summer/CenterCity_dry2.tga
City3 = Italy_DF/land/summer/factory_dry.tga
AirField0= Italy_DF/land/summer/dry2_v2.tga,2
AirField1= Italy_DF/land/summer/Lowland_dry.tga,2
AirField2= Italy_DF/land/summer/macchia_dry.tga,2
AirField3= Italy_DF/land/summer/vulcan.tga
Wood0 = Italy_DF/land/summer/macchia_neu4.tga,2
Wood1 =
Wood2 = Italy_DF/forest/summer/ItaWood_far.tga,2
Wood3 =
Water0 = water/water.tga
Water1 = water/water.tga
Water2 = water/coastline.tga
Water3 = Italy_DF/water/dune_beach.tga


You have to modify now the month and decline to be similar to the smolensk one
In the smolensk load.ini this section is

[WORLDPOS]
CAMOUFLAGE = SUMMER
MONTH=7
DECLIN = 52
PRESSURE = 745
TEMPERATURE = 17